Dessin par Hélène
Michel Waldschmidt

Agenda - Archives (from January 2009 till now)

January 22, 2009, Heidelberg Colloquium organized by the Institute for Mathematics.
    Transcendental Number Theory: Schanuel's Conjecture. (pdf 59 p., 5,2 Mo)

February 21 - 28, 2009, CIMPA School, Lahore (Pakistan). (rapport en français).
    Combinatorial and Computational Aspects of Commutative Algebra

25, 26 et 27 mars 2009, Institut Henri Poincaré, Paris
    Rencontre différentio-diophantienne - Un parcours libre entre motifs, équations différentielles, logique et transcendance
    Exposé: Transcendance p-adique.

April 3 - 4, 2009, Brussels (Belgium) Report in English.
    Meeting of the Committee for the Developing Countries (CDC) of the European Mathematical Society (EMS)

April 6 - May 10, 2009, Vietnam and Cambodia (rapport en français)
    April 7 - 17, 2009, Ho Chi Minh University of Sciences HCMUS,
       Finite fields: some applications.
    April 20 - May 8, 2009, Royal University of Phnom Penh (URPP - Université Royale de Phnom Penh).
        Master of Science in Mathematics, CIMPA Master Training Program, Discrete Mathematics MMA 105.

May 17 - 24, 2009, National Taiwan University, Taipei, Taiwan.
    Taida Institute for Mathematical Sciences (TIMS)
       May 19 - 22, 2009, conference "Modular Forms and Function Field Arithmetic"
       Friday, May 22, 2009: Schanuel's Conjecture and Criteria for Algebraic Independence

24 - 30 mai 2009, Faculté des Sciences, Université Mohammed premier, Oujda (Maroc) (rapport en français).
    18 - 30 mai 2009, École de recherche CIMPA, Cryptographie.

7 - 11 juin 2009, Université des Sciences et de la Technologie Houari-Boumediène (USTHB), Alger (rapport en français).
    7, 9 et 11 juin: Cours sur les nombres transcendants, Département d'Algèbre et Théorie des Nombres, Faculté des Mathématiques
    8 juin: Introduction à la cryptographie. (powerpoint ppt file, 2,9 Mo).

6 - 10 juillet 2009, St Etienne
    26èmes Journées Arithmétiques.

3 - 8 août 2009, Yamoussoukro (Côte d'Ivoire) (rapport en français).
    Seventh Pan African Congress of Mathematicians (7th PACOM) Septième Congrès Pan Africain de Mathématiques (7è COPAM)
    New trends in the development and the applications of mathematical sciences
    Conférence plénière: Nombres transcendants: résultats récents et problèmes ouverts (fichier pdf, 3,9 Mo).

19 - 20 septembre 2009: Saint Maixent l'École.

23 - 30 septembre 2009: invité par Claude Levesque, Département de mathématiques et de statistique Université Laval Québec (Canada).
    Jeudi 24, 15h30, Colloquium de Mathématiques Autour de l'équation de Markoff
    Vendredi 25, 20h, Conférence CRM , Salle Hydro-Québec, Pavillon Desjardins, Université Laval
    Questions arithmétiques soulevées par des lapins, des vaches et le Code da Vinci

October 3 - 13, 2009: Mumbai = Bombay (India)
    October 5 - 9, International conference on "Analytic Number Theory" ant2009, TIFR Tata Institute of Fundamental Research.
        Lecture on Thursday, October 8, 9:30 am:
            Criteria for irrationality, linear independence, transcendence, algebraic independence.   screen pdf: 4,7 Mo, 94 p.   print pdf: 4.4 Mo, 14 p.

October 13 - 22, 2009: Japan.
    October 14 -16, 2009: Kyoto (Japan). Analytic number theory and related topics, RIMS, Kyoto. Organizer : Hirofumi Tsumura.
        Department of Mathematics, Kyoto Univ., Rm 127, Faculty of Science bldg. #3.
        Lecture on Friday, October 16, 10:00 am:
            Recent Diophantine results on zeta values: a survey   screen pdf: 7 Mo, 119 p.   print pdf: 6.7 Mo, 20 p.
    October 17 - 18, 2009: Two-day International Conference on Number Theory, Kinki University, Iizuka, Fukuoka (Japan).
        Lecture on Sunday, October 18, 2pm:
            Schanuel's Conjecture and criteria for algebraic independence.   screen pdf 6 Mo, 111 p.   print pdf 5.7 Mo, 16 p.
    October 21, 2009: Kyushu University.
        Algebra Seminar, 11:00 am:
            On the Markoff equation x^2+y^2+z^2=3xyz.   screen pdf 4.2 Mo, 142 p.   print pdf 3.3 Mo, 17 p.

Lundi 26 octobre 2009, 16h30, Université Paris Diderot, La Halle aux Farines, Amphi 1A - Rez de Chaussée, 16 rue Françoise Dolto
    Exposé au Maths-Club de l'IREM:
       Cryptographie: une introduction élémentaire   ppt 2,9 Mo, 81 p.   print pdf 2,9 Mo, 20 p.

October 27 - November 4, 2009: Thailand.
    October 29 - 31, 2009: Franco-Thai Seminar in Pure and Applied Mathematics, Bangkok
        October 31, 13:30-14:00: Presentation of a paper on
            Criteria for linear independence and transcendence, following Yuri Nesterenko, Stéphane Fischler, Wadim Zudilin and Amarisa Chantanasiri.
            screen pdf: 4 Mo, 106 p.   print pdf: 3.7 Mo, 13 p.
        October 31, 14:35-16:30 Round Table on Franco – Thai Cooperation
    Monday, November 2nd - Wednesday, November 4th Number Theory Days in KKU; Faculty of Science, Khonkaen University (KKU), Thailand.
        November 2, 10:00 - 12:15, Lecture on History of irrational and transcendental numbers   screen pdf: 4,4 Mo, 221 p.   print pdf: 3,5 Mo, 20 p.
        November 3, 10:00 - 12:15, Lecture on Discrete mathematics and Diophantine analysis.   screen pdf: 1.5 Mo, 158 p.   print pdf: 908 Ko, 16 p.
        November 4, 10:00 - 12:15, Lecture On the so-called Pell-Fermat equation   screen pdf: 1.8 Mo, 186 p.   print pdf: 1.1 Mo, 21 p.

November 13 - 20, 2009: Iraqi Kurdistan Report in English.
    November 14 - 18, 2009: Erbil, The First Iraqi-French Mathematics Conference in Cooperation with College of Science, Salahaddin University-Erbil
    under the slogan With Science, we build civil society.

November 25 - December 2, 2009: Pakistan.
    The French Science Tour in Pakistan (FSTP) (rapport en français)
    Some recent results in mathematics related to modern technology   ppt 4,7 Mo, 171 p.   print pdf 4,1 Mo, 43 p..
  November 25-29, Lahore.
       Abdus Salam School of Mathematical Sciences (ASSMS)
  November 30, Islamabad
       COMSATS Institute of Information Technology (CIIT) Department of Mathematics in the Faculty of Sciences.
  December 1, Islamabad
       National University of Science and technology (NUST), School of Electrical Engineering and Computer Sciences (SEECS)
       Mohammed Ali Jinnah University (MAJU) Department of Computer Science
             19h00: Some arithmetic problems raised by rabbits, cows and the Da Vinci Code. ppt 9.1 Mo, 89 p.   print pdf 7.1 Mo, 23 p.

December 2 - 24, 2009: Chennai, India
    The Institute of Mathematical Sciences (IMSc)
        Mathematics Colloquium, Wed. December 9, 15:30 - 16:30 Hall 123
        Recent Diophantine results on zeta values: a survey   screen pdf: 7 Mo, 118 p.   print pdf: 6.7 Mo, 19 p.
    Chennai Mathematical Institute (CMI): course on algebraic independence and modular forms.
    Pie Mathematics Association, Sunday December 20, 16:00 - 17:00, Raj Towers (Fulcrum) II Floor, 31, White's Road, Royapeyyah, Chennai - 14
        Srinivasa Ramanujan   screen pdf: 3 Mo, 156 p.   print pdf: 2.5 Mo, 20 p.

January 2 - February 13, 2010, India. (rapport en français)
January 3-7, 2010, Trivandrum = Thiruvananthapuram, Kerala, India
    97th Indian Science Congress
       January 4, 4:30 pm: Number Theory Challenges of 21st Century     screen pdf: 1.37 Mo, 99 p.     print pdf: 1.08 Mo, 12 p.
January 8, 2010, Calicut = Kozhikode (Kerala)
    The Kerala School of Mathematics (KSoM)
       January 8: Number Theory  Challenges of 21st Century     screen pdf: 2.12 Mo, 155 p.     print pdf: 1.57 Mo, 19 p.
January 9-10, 2010, Cochin = Kochi (Kerala)
    Department of Mathematics, Cochin University of Science and Technology CUSAT
       January 10, at 10:30 am: Some challenging number theoretic problems of twenty-first century     screen pdf: 2.36 Mo, 184 p.     print pdf: 1.67 Mo, 22 p.
January 10-31, 2010: Madras = Chennai, India.
    Chennai Mathematical Institute (CMI) and The Institute of Mathematical Sciences (IMSc): course on algebraic independence and modular forms.
    Tuesday, January 12, 2010, The Ramanujan Institute, Chennai: "S.S. Pillai Endowment Lecture" Perfect Powers: Pillai's works and their developments     screen pdf: 2.3 Mo, 145 p.     print pdf: 1.8 Mo, 15 p.
    Wednesday, January 20, 2010, Chennai Mathematical Institute (CMI) : "R.K. Rubugunday Endowment Lecture" Number Theory  Challenges of 21st Century.     screen pdf: 2.3 Mo, 176 p.     print pdf: 1.7 Mo, 21 p.
    Friday, January 22, 2010, Department of Mathematics, Providence College For Women, Coonoor, Nilgiris: one-day workshop.
        Introduction to cryptography.     screen ppt: 4.2 Mo, 104 p.     print pdf: 7.2 Mo, 26 p.
        Introduction to coding theory.     screen ppt: 4.1 Mo, 162 p.     print pdf: 5.3 Mo, 41 p.
February 1 - 7, 2010: Bhubaneswar, India
    Institute of Mathematics and Applications (IMA)
    National Institute of Science Education and Research (NISER)
        IMA, Feb. 1, 2 and 3, from 3 to 4:30 pm. An introduction to Diophantine approximation and continued fractions.
        NISER, February 4, at 5pm: Lecture on Srinivasa Ramanujan   screen pdf: 3 Mo, 159 p.   print pdf: 2.5 Mo, 20 p.
        IMA, February 5: On the so-called Pell-Fermat equation   screen pdf: 1.8 Mo, 186 p.   print pdf: 1.1 Mo, 21 p.
February 8-12, 2010: Allahabad, India
    Harish-Chandra Research Institute (HRI)
        February 9 at 4 PM - Lecture on History of irrational and transcendental numbers (I).
        February 10 at 12:00 noon - Lecture on History of irrational and transcendental numbers (II).
           (see my lecture in November 2009 for the Number Theory Days in KKU; Faculty of Science, Khonkaen University   screen pdf: 4,4 Mo, 221 p.   print pdf: 3,5 Mo, 20 p. )
        February 12 at 4:00 PM : HRI Colloquium Math and Phys Number Theory  Challenges of 21st Century.     screen pdf: 2.4 Mo, 177 p.     print pdf: 1.7 Mo, 21 p.

February 13-24, 2010: Lahore, Pakistan (rapport en français)
    Abdus Salam School of Mathematical Sciences (ASSMS) Graduate course: Introduction to Diophantine Approximation, February 15, 16, 17, 18, 19, 22 and 23, from 2 pm to 3:30 pm.
       February 23, 2010: On the so-called Fermat-Pell equation     screen pdf: 3.2 Mo, 194 p.   print pdf: 1.2 Mo, 21 p.

February 25-27, 2010: Kathmandu, Nepal (rapport en français)
    Central Department of Mathematics, Tribhuvan University TU, Kirtipur, Kathmandu.
        On 25 Feb: talk on “On the so-called Pell-Fermat equation”   screen pdf: 1.8 Mo, 185 p.   print pdf: 1.1 Mo, 21 p.
        On 26 Feb, 11:30 - 13:00 and 14:30 - 16:00: talks on “Continued Fractions and Pell's equation”.

March 8-14, 2010: Pisa, Italy
    Centro De Giorgi: Italy-India conference on Diophantine and Analytic Number Theory

Mercredi 31 mars 2010: 14 heures à l'Amphithéâtre Darboux, Institut Henri Poincaré (Paris)
    Séminaire d'Epistémologie et Histoire des idées Mathématiques. Exposé avec Michel Serfati: Sur l'irrationalité de nombres transcendants.

Samedi 2 avril 2010, 10:00 - 12:00: Lycée Jules Verne, Limours
    Jeux de cartes et de chapeaux, transmission de données et codes correcteurs d'erreurs. ppt 4 Mo, 164 p.   print pdf 6,2 Mo, 41 p.

Jeudi 8 avril 2010, Institut Camille Jordan, Université Claude Bernard Lyon 1
    Habilitation de Boris Adamczewski: Une approche arithmétique des systèmes de numération. Soutenance à 14 h 30, salle Fokko du Cloux

April 10, 2010: Budapest, Hungary
    Meeting of the Committee for the Developing Countries (CDC) of the European Mathematical Society (EMS)

April 12 - June 29, 2010: Rio de Janeiro, Brazil. (rapport en français).
    IMPA Instituto Nacional de Matematica Pura e Aplicada,
    Course on number theory.
        April 15, 2010, IMPA
        Colloquium lecture (Colóquio de Pós-Graduação) On the so-called Pell-Fermat equation   screen pdf: 1.9 Mo, 194 p.   print pdf: 1.2 Mo, 22 p.

July 12 - 16, 2010: Central Department of Mathematics, Tribhuvan University TU, Kirtipur, Kathmandu, Nepal.
    Lectures on Diophantine Approximations and Padé Approximants.

July 19 - 31, 2010: Dhulikhel, Nepal.
    CIMPA Research school on number theory in cryptography and its applications. School of Science, Kathmandu University, Dhulikhel, Népal.
    Course on Finite Fields (pdf: 69 pages).
    Tuesday, July 20, 2010: Introduction to cryptography (ppt: 97 p., 3.3 Mo).
    Thursday, July 22, 2010: Introduction to error correcting codes (ppt: 162 p., 4.1 Mo).
    Friday, July 23, 2010: Course 3 (pdf: 6 pages).
    Sunday, July 25, 2010: Course 4 (pdf: 16 pages).

August 18 - September 4, 2010: India.
    August 18, 2010, IIIT, Hyderabad.
       1430hrs. Saranga Hall (Room No.119), International Institute of Information Technology (IIIT), Hyderabad
       Srinivasa Ramanujan   screen pdf: 3,1 Mo, 159 p.   print pdf: 2.6 Mo, 20 p.
    August 19 - 27, 2010: Hyderabad.
       International Congress of Mathematicians ICM 2010, Hyderabad International Convention Centre.
       August 24: meeting of the IFIM (Indo French Institute of Mathematics = Institut Franco Indien de Mathématiques).
          Indo-French cooperation in Mathematics, (pdf: 140 Ko)
          Special issue on Mathematics Newsletter of the Ramanujan Mathematical Society , Vol. 19, Sp. No. 1, August 2010, 1-12.
       August 25: meeting Mechanisms for strengthening mathematics in developing countries.
          Presentation of the CIMPA (Centre International de Mathématiques Pures et Appliquées)
          and of the Committee for the Developing Countries (CDC) of the European Mathematical Society (EMS)
    August 29 - September 3, 2010: Chennai.
       Analytic and Combinatorial Number Theory, The Institute of Mathematical Sciences (IMSc).
        Thursday, September 2, 9:30 - 10:10 Talk on p-adic density of rational points on abelian varieties.

Du 6 au 10 septembre 2010: CIRM, Luminy, France
    Approximation diophantienne et transcendance.
    Exposé sur : Nouvelles familles d'équations de Thue n'ayant que des solutions triviales (travail en commun avec Claude Levesque).

September 14 - 17, 2010, Feza Gürsey Institute, TUBITAK, Galatasaray University, Istanbul (Turkey), September 13 - 21, 2010.
    CIMPA Research School Commutative Algebra and Applications to Combinatorics and Algebraic Geometry.

September 24 - October 23, Phnom Penh, Cambodge (via Ho Chi Minh, Vietnam)
    September 27 - October 20, 2010: Royal University of Phnom Penh (URPP - Université Royale de Phnom Penh).
        Master of Science in Mathematics, CIMPA Master Training Program.
        Course 1: Linear Algebra.
        Course 2: Introduction to real analysis.

Du 15 au 26 novembre 2010, Bamako (Mali)
    Département d'Enseignement et de Recherche (DER) de Mathématiques et Informatique de la Faculté des Sciences et Techniques (FAST) de l'Université de Bamako.
    École de recherche CIMPA : Théorie des Nombres et Algorithmique
    Cours: Équations de Pell-Fermat.
        Premier cours: présentation beamer sur L'équation dite de Pell-Fermat x^2-dy^2=\pm 1
            version écran: 2 Mo, 86 (197) p.   version pour imprimer: 1.1 Mo, 22 p.
        Les cours suivants ont été donnés également en français, bien que la rédaction soit en anglais:
            L'équation de Pell-Fermat (55 p., 434 Ko).
    Vendredi 19 novembre 2010: Cryptographie: une introduction élémentaire   ppt 3,4 Mo, 90 p.   print pdf 3,3 Mo, 23 p.
Le suivi de cette école est assuré sur la page dédiée de ce site.
Mon rapport de mission est rédigé en français; un lien se trouve sur la page consacrée aux activités de coopération.

December 14 - 16, 2010, Erbil (Kurdistan, Iraq)
    International Conference on Revitalizing Research in Kurdistan.
    December 15, 9:00 - 12:00, session 4 Mathematics. International Cooperation in Mathematics: France and Kurdistan     screen pdf: 180 Ko, 40 p.   print pdf: 188 Ko, 6 p.
    (rapport de mission en français, 7p., plus 2 appendices in English, 1p.+3p.)

Du mardi 18 au jeudi 20 janvier 2011: Bruxelles (Belgique) ERC Starting Grant Peer Review Panel 2011

March 1-3, 2011: Mathematisches Institut, Üniversität Basel (Schweiz)
    Zahlentheorie Arbeitsgruppe: lecture on Families of Diophantine equations with only trivial solutions
    Perlen-Kolloquium am Departement Mathematik On the so-called Fermat-Pell equation         screen pdf: 1.1 Mo, 185 p.   print pdf: 1 Mo, 21 p.

Samedi 12 mars 2011, Lycée Jules Verne de Limours
    Rationnels, irrationnels, infinis         screen pdf: 5.4 Mo, 193 p.   print pdf: 5,3 Mo, 27 p.

Mercredi 16 mars 2011, Institut Fourier, Grenoble.
    Séminaire tournant de Théorie Analytique des Nombres et d'Approximation Diophantienne.
       Familles d'équations de Thue-Mahler n'ayant que des solutions triviales.

Du mardi 4 janvier au vendredi 25 mars 2011:
    Cours de Master à Jussieu : Théorie des Nombres.

April 1-3, 2011: Madrid (Spain)
    Meeting of the Committee for the Developing Countries (CDC) of the European Mathematical Society (EMS)

April 4-29, 2011: The Institute of Mathematical Sciences (IMSc), Chennai (India)
    Special year in number theory at IMSc: Course on multizeta values. (51 pages, updated September 29, 2012).

April 26, 2011, Bangalore (India),
    Colloquium talk at TIFR (Tata Institute of Fundamental Research) CAM (Centre for Applicable Mathematics).
    Ramachandra's contributions on transcendental number theory.         screen pdf: 6.5 Mo, 93p.   print pdf: 6.5 Mo, 16p.

Du mardi 3 au vendredi 6 mai 2011: Bruxelles (Belgique) ERC Starting Grant Peer Review Panel 2011

Mercredi 11, lundi 23 et mardi 24 mai 2011: Caen - Comité sélection PR 25.

Friday, May 27, 2011: Barcelona
    Department of Applied Mathematics IV, Universitat Politècnica de Catalunya (UPC).
    Mathematics Colloquium: Transcendental Number Theory: recent results and open problems.
    screen pdf: 4,1 Mo, 80p.   print pdf: 4 Mo, 20p.

Le 13 juin 2011, veillée de soutien au Blogueur franco-vietnamien Pham Minh Hoang-Pierre , détenu depuis le 13 août 2010 au Vietnam
    Parvis de la Cathédrale Notre-Dame de Paris M° Cité, Hôtel de Ville - RER Saint-Michel

June 6-14, 2011: Weinan Teachers University (Weinan, Shaanxi, China) et Suda Neu-Tech Institute (Sanmenxia, Henan, China)
    Wednesday, July 8, 2011. Weinan Teachers University; talk On the so-called Fermat-Pell equation     screen pdf: 3.2 Mo, 194 p.   print pdf: 1.2 Mo, 21 p.

Lundi 20 juin 2011, UNESCO (Paris): General Assembly of CIMPA.
    Activities by region India and West Asia     ppt file     pdf file.

Du lundi 27 juin au vendredi 1 Juillet 2011: Vilnius (Lithuanie)
    Journées Arithmétiques 2011

July 6-9, 2011: Fields Institute, Toronto (Ontario, Canada)
    Conference on transcendence and L-functions
    Wednesday, July 6, 3:30-4:30: Transcendence properties of Euler's Gamma and Beta functions.

From Saturday, July 16 to Friday, July 22, Turkey
    17 Istanbul
    18-19 Bursa, Uludag University, lecture on Diophantine equations, Diophantine approximation and connexions between them
    20-23: Konya The 24th International Conference of Jangjeon Mathematical Society ICJMS’2011,
        Organized by Selcuk University (Department of Mathematics, Science Faculty and Research Center of Applied Mathematics) - Scientific Committee.
        Lecture On the Brahmagupta-Fermat-Pell Equation x^2-dy^2= \pm 1.         screen pdf: 3 Mo, 65 p.   print pdf: 3 Mo, 17 p.
        Rapport en français: 4p.

Du 24 au 31 juillet 2011: Kinshasa, République Démocratique du Congo (RDC)
    École de recherche CIMPA Systèmes Dynamiques dans des Variétés et Applications (l'école est du 18 au 31 juillet 2011)
    Vendredi 30 juillet 2011, présentation du CIMPA (Centre International de Mathématiques Pures et Appliquées) (fichier powerpoint en français, 4,8 Mo)
    et atelier sur l'Accès internet à la documentation électronique en mathématique en Afrique (fichier powerpoint, 2,4 Mo)
    animé avec Jorge Jimenez Urroz, à partir du workshop Finding Online Information in Mathematics d'Anders Wändahl.
    Le suivi de cette école est assuré sur la page dédiée du site du CIMPA.
    Mon rapport de mission (5 pages) est rédigé en français; un lien se trouve sur la page consacrée aux activités de coopération.

August 30 - September 22, 2011: Central Department of Mathematics, Tribhuvan University TU, Kirtipur, Kathmandu, Nepal.
    Master Course: Introduction to Algebraic Number Theory.
    September 18, 2011, 9:45-10:45; Central Department of Computer Science and Information Technology (CDCSIT):
    Number Theory in Cryptography and its Applications: Introduction to Cryptography (ppt: 97 p., 3.6 Mo)   print pdf 3,5 Mo, 24 p.
    Wednesday, September 21, 2011, presentation of CIMPA (Centre International de Mathématiques Pures et Appliquées) (powerpoint file, 4,7 Mo)

September 24 - October 27, 2011: Abdus Salam School of Mathematical Sciences (ASSMS), Lahore (Pakistan)
    A Course on Finite Fields.
    September 27 - October 1, 2011: An Expository Workshop on Number Theory and Allied Areas in Mathematics in ASSMS Lahore (Pakistan).
    Tuesday, September 27, 2011: Introduction to error correcting codes (ppt: 162 p., 4.3 Mo).

Vendredi 4 novembre 2011, 20h, Bibliothèque de Limours.
    Soirée débat avec Pierre Cartier : Mathématiciens sans Frontières
    (À 19h, inauguration de l'exposition "des maths partout?").

November 10, 2011: Prague, Czech Republic.
    KAM Mathematical Colloquium. Faculty of Mathematics and Physics of Charles University.
    Transcendence of Periods.    screen pdf: 5.4 Mo, 99p.   print pdf: 5.4 Mo, 25p.

14 novembre 2011, Collège Jean-Jaurès de Pantin, promenade mathématique
    Un code secret peut-il permettre une transaction sécurisée? ( ppt: 76 p., 2,5 Mo, pdf: 20 p., 6,9 Mo, ).

November 21 - December 21, 2011: India.
    November 21 - 27, 2011, Neemrana University (Rajasthan), National Institute of Information and Technology (NIIT).
        November 21, 3:00 pm: Number Theory in Cryptography and its Applications: Introduction to Cryptography; ppt , 3.6 Mo 97 p.   print pdf 3,5 Mo, 24 p.
        November 22, 4:30 pm: Introduction to error correcting codes; ppt 4.3 Mo, 162 p.   print pdf 3,5 Mo, 41 p.
        November 25-26, 2011: two day symposium on Ramanujan's life work and interests, NIIT University, Neemrana, Rajastan.
            November 25, 10:00 am: On the Brahmagupta-Fermat-Pell Equation x^2-dy^2= \pm 1;     screen pdf: 3,2 Mo, 194 p.   print pdf: 3,2 Mo, 21 p.
            November 25, 6:30 pm: Srinivasa Ramanujan;   screen pdf: 3,1 Mo, 160 p.   print pdf: 2.7 Mo, 20 p.
            November 26, 10:00 am: On the Markoff equation x^2+y^2+z^2=3xyz;   screen pdf 4.3 Mo, 165 p.   print pdf 4,2 Mo, 21 p.
    November 28 - December 20, 2011, Harish-Chandra Research Institute (HRI), Allahabad
        November 29, 30 and December 5, 8, 12: HRI ``Special Years in Mathematics'' Project.
            Five courses on Diophantine Approximation and Diophantine Equations; informal notes: 14 pages; pdf 250 Ko.
        Friday, December 9, HRI Colloquium lecture sponsored by the Indian Mathematical Society on Transcendental Numbers     screen pdf 4.6 Mo, 89p.   print pdf 4.5 Mo, 22p.
        December 15 - 20, 2011: HRI: International Meeting on Number Theory 2011
            December 16: lecture on Families of Thue-Mahler equations     screen pdf 1.7 Mo, 24p.   print pdf 1.8 Mo, 6p.

6 janvier 2012: Clermont Ferrand.
    Université Blaise Pascal de Clermont-Ferrand, Laboratoire de Mathématiques: Jury de l'habilitation de Kamal Boussaf.

Samedi 7 janvier 2012, Lycée Jules Verne de Limours
    "Mathématiciens sans Frontières" avec Pierre Cartier.
    Exposé sur Srinivasa Ramanujan         screen pdf: 2,5 Mo, 52 p.   print pdf: 2,5 Mo, 13 p.

11 - 13 janvier 2012: Metz - Nancy.
    Évaluation du laboratoire (AERES Agence d'Évaluation de la Recherche et de l'Enseignement Supérieur).

January 16 - February 3, 2012: Khonkaen University (KKU), Thailand.
    Faculty of Science, Department of Mathematics. Course on number theory.
January 23, 2012: Vientiane (Laos)
    Faculty of Science, National University of Laos (NUOL) Lao PDR. Report in English.

February 3, 2012: Bangkok (Thailand)
    Centre of Excellence in Mathematics (CEM), Department of Mathematics, Mahidol University.
    Lecture at 1:30 pm on Transcendental Number Theory: recent results and open problems.     screen pdf 4.6 Mo, 90p.   print pdf 4.5 Mo, 23p.

February 4 - 13, 2012: Lahore (Pakistan)
    Abdus Salam School of Mathematical Sciences (ASSMS), Research School : Local analytic geometry, CIMPA (Centre International de Mathématiques Pures et Appliquées).
    February 10, Centre for Advanced Studies in Mathematics (CASM), Lahore University of Managment Sciences (LUMS):
    talk on Number theory: Challenges of twenty-first century     screen pdf: 2 Mo, 84 p.     print pdf: 2 Mo, 21 p.
    I wrote a Report in English.

February 13, 2012: Bangkok (Thailand)
    Chulalongkorn University, Faculty of Science, Department of Mathematics and Computer Science
    Seminar lecture at 2:00 pm - Diophantine approximation and Diophantine equations: an introduction         screen pdf: 1.3 Mo, 94 p.     print pdf: 1.3 Mo, 16 p.
    After my visits to Thailand from January 16 to February 3 and on February 13, I wrote a Report in English.

March 3 - 8, 2012: University of Hawai`i at Mānoa (USA).
    March 3 - 4, 2012: Sectional Meeting of the AMS (American Mathematical Society), Special session on Algebraic Number Theory, Diophantine Equations and Related Topics.
        March 3, 2012, 15:45-16:05, Families of Thue-Mahler equations with only trivial solutions.     screen pdf: 277 Ko, 47 p.     print pdf: 313 Ko, 6 p.
    March 6 - 8, 2012: HCANTAGMF (Hawai`i Conference in Algebraic Number Theory, Arithmetic Geometry and Modular Forms).
        March 7, 9:45am – 10:15am East-West Center, Some remarks on Diophantine equations and Diophantine approximation.     screen pdf: 1 Mo, 94 p.     print pdf: 1 Mo, 12 p.

March 12 - 16, 2012: Newcastle (Australia).
    International Number Theory Conference in Memory of Alf van der Poorten, AM. Hosted by CARMA (Priority Research Centre for Computer-Assisted Research Mathematics and its Applications), the University of Newcastle, Australia.
        March 15, 4.00pm Some families of curves with only trivial S-integral points.     screen pdf: 4.1 Mo, 107 p.     print pdf: 4.1 Mo, 17 p.

March 29 - April 10, 2012: PhnomPenh (Cambodge).
    Royal University of Phnom Penh (URPP - Université Royale de Phnom Penh).
        Master of Science in Mathematics, CIMPA Master Training Program, Course on Number Theory (with Fidel Nemenzo).
        April 2, 2012, Khemarak University, Phnom Penh, 1 pm: lecture On the Brahmagupta-Fermat-Pell Equation x^2-dy^2= \pm 1.         screen pdf: 3.2 Mo, 84 p.   print pdf: 3.2 Mo, 21 p.
    Report in English.

April 13 - 14, 2012: Limoges.
    Meeting of the Committee for the Developing Countries (CDC) of the European Mathematical Society (EMS)

Lundi 16 avril 2012 : Université Claude Bernard, Lyon I.
    Département de mathématiques, Institut Camille Jordan, Commission de recrutement, poste de Maître de Conférences.

Lundi 14 et mardi 15 mai 2012 : Université Claude Bernard, Lyon I.
    Département de mathématiques,Commission de recrutement, poste de Maître de Conférences.

Mercredi 16 mai 2012, 16:15: Amiens.
    Université de Picardie-Jules Verne, Laboratoire Amiénois de Mathématique Fondamentale et Appliquée. Colloquium Mathématique d'Amiens: Nombres Transcendants.     screen pdf: 4,7 Mo, 92 p.     print pdf: 4,6 Mo, 23 p.

29 mai - 1 juin, 2012, IHP (Paris)
    Hypergeometric series and their generalizations in algebra, geometry, number theory and physics.

Vendredi 1 juin, 14h, IHP (Paris)
    Assemblée Générale du CNFM (Comité National Français des Mathématiciens).

Dimanche 3 juin 2012, Place Jussieu, Paris
    Salon Culture & jeux mathématiques 2012 10h30 - Show Math Sciences et Mathématiques en Action SMAC (Québec) avec Jean-Marie de Koninck.

Vendredi 8 Juin 2012, 11:00: Metz.
    Université de Lorraine, Laboratoire de Mathématiques et Applications de Metz, Equipe "Algèbre, Géométrie et Analyse": Familles d'équations diophantiennes sans solution non triviale.

Lundi 11 et mardi 12 juin 2012, IHÉS (Bures sur Yvette, France), centre de conférences Marilyn et James Simons.
    Conférence "Dialogues autour de l'algèbre, la géométrie et les fonctions multizêtas" à l'occasion des 80 ans de Pierre Cartier.

Vendredi 15 et samedi 16 juin 2012, Institut Henri Poincaré, Paris.
    Journées annuelles de la SMF: Transcendance et irrationalité.
    Vendredi 15 juin, 13:30: Questions de transcendance: grandes conjectures, petits progrès (19 pages - épreuves 23/05/2012).
    screen pdf: 4,9 Mo, 95 p.     print pdf: 19,5 Mo, 32 p.

Mardi 19 juin, 14h, IHP (Paris)
    Assemblée Générale du CIMPA (Centre International de Mathématiques Pures et Appliquées).

Du 25 juin au 5 juillet 2012, Paris
    "Ecole d'été" sur le thème "Autour des conjectures de Zilber-Pink".

Friday, July 6, 2012: Wien (Austria)
    Austrian Science Fund (FWF) Special Research Programme (SFB)

July 30 - August 3: Astrakhan (Russia).
    Diophantine analysis in Astrakhan, Astrakhan State University. Lecture on families of Diophantine equations without non-trivial solutions.

August 20-24, 2012: Hué (Vietnam)
    Joint congress of the French Mathematical Society (SMF) and the Vietnamese Mathematical Society (VMS).

September 23-30, 2012, Centro De Giorgi, Pisa (Italie)
    ERC Intensive research period on Diophantine Geometry. (20 September 2012 - 20 October 2012).
    Talk on September 25th: Families of Diophantine equations.

Jeudi 4 Octobre, Nantes, Laboratoire de Mathématiques Jean Leray
    Colloquium de mathématiques: Quelques unes des nombreuses conjectures de la théorie des nombres transcendants.     screen pdf: 12.4 Mo, 125 p.     print pdf: 15.7 Mo, 32 p.

October 10-14, 2012: New-Delhi (India)
    October 10, 3:30 PM at Seminar Room 2, New Building Theoretical Statistics and Mathematics Unit, Indian Statistical Institute (ISI). Mathematics Seminar.
        Lecture on Diophantine approximation and Diophantine equations: old and new.     screen pdf: 1.3 Mo, 52 p.     print pdf: 1.3 Mo, 13 p.
    October 12, 3:30 pm, Delhi University, South Campus, colloquium of mathematics.
        Lecture on Number theory: Challenges of twenty first century     screen pdf: 3.2 Mo, 95 p.     print pdf: 3.1 Mo, 24 p.

October 14 - November 28, 2012: Nepal.
    October 18 - November 6: Gokyo, ChoLa Pass, Everest Base Camp, Kalapatar, Island Peak.
    November 7 - 28: Kathmandu.
        Course on Continued Fractions, Central Department of Mathematics, Tribhuvan University TU, Kirtipur, Kathmandu, Nepal.

Mardi 4 décembre 2012, Université de Caen , Laboratoire de Mathématiques Nicolas Oresme
    exposé au colloquium de mathématiques: Questions de transcendance: grandes conjectures, petits progrès
    screen pdf: 4,9 Mo, 95 p.     print pdf: 19,5 Mo, 32 p.

Mercredi 5 décembre 2012, Université de Lille 1
    Soutenance de thèse de Lucas Demangos.

Mardi 11 décembre 2012, Institut de Mathématiques de Toulon et du Var
    Symposium de mathématiques: Questions de transcendance: grandes conjectures, petits progrès
    screen pdf: 10,5 Mo, 125 p.     print pdf: 13,8 Mo, 32 p.

December 17 - 22, 2012. New Delhi (India)
    The Legacy of Srinivasa Ramanujan - An International Conference, Viceregal Lodge, University of Delhi
    Plenary talk on Tuesday, December 18, 4pm: From highly composite numbers to transcendental number theory.
       screen pdf: 9.7 Mo, 90 p.     print pdf: 9.7 Mo, 25 p.

Mardi 15 janvier 2013, promenade mathématique, Lycée Frédéric Mistral, Fresnes.
    Introduction à la cryptographie. fichier powerpoint, 3,4 Mo, 90 pages fichier pdf, 3,4 Mo, 23 pages.

January 25 - February 1, 2013, Harish-Chandra Research Institute (HRI), Allahabad (India).
    Wednesday, January 30, 11:30 am, Mathematics Seminar : Liouville sets and Liouville fields.

February 1-3, 2013, The Institute of Mathematical Sciences (IMSc), Chennai (India).

February 4-8, 2013, Calicut = Kozhikode (Kerala, India).
    The Kerala School of Mathematics (KSoM)
       Workshop on number theory and dynamical systems.
       Course on Diophantine approximation and linear recurrence sequences.

Samedi 16 février 2013, 16h. médiathèque de Meudon-la-Forêt.
    Promenade mathématique : La suite de Fibonacci et le nombre d’or. ppt 9,4 Mo, 82 p.

March 1-13, Pakistan
    March 6-9, 2013, Lahore, Abdus Salam School of Mathematical Sciences (ASSMS)
        6th World Conference on 21st Century Mathematics 2013.
        Lecture On the abc conjecture and some of its consequences     screen pdf: 6.4 Mo, 133 p.     print pdf: 6.5 Mo, 20 p.
        Text for the proceedings (preliminary version): 320 Ko 26 p.
    March 11, 2013, Lahore, Abdus Salam School of Mathematical Sciences (ASSMS)
        Workshop on Number Theory and Related Topics. Organized by the National University of Computer & Emerging Sciences [NUCES], Peshawar.
        Lecture on Solving families of Diophantine equations. extended abstract, 2p., 200 Ko
    March 12, 2013, COMSATS IIT, Lahore Campus
        Lecture on Diophantine approximation and Diophantine equations: old and new     screen pdf: 4.5 Mo, 165 p.     print pdf: 4.5 Mo, 22 p.

March 18 - 22, 2013, Dublin (Ireland).
    Colloquium, Department of Mathematics and Statistics, National University of Ireland, Maynooth.
        Lecture On the abc conjecture and some of its consequences     screen pdf: 6.4 Mo, 131 p.     print pdf: 6.5 Mo, 20 p.

April 4-7, 2013, Aarhus (Denmark)
    April 5-7, EMS/DMF Joint Weekend,
        Danish Mathematical Society (DMF)'s 140 years anniversary, European Mathematical Society (EMS).
        April 5, Lecture on "Diophantine equations, old and new".     screen pdf: 4.2 Mo, 92 p.     print pdf: 4.2 Mo, 13 p.
    April 6, EMS meeting of the presidents 2013, Danish Mathematical Society (DMF).
        EMS-CDC     screen pdf: 233 Ko, 14 p.     print pdf: 275 Ko, 4 p.

Lundi 15 avril 2013. Lycée François Couperin à Fontainebleau.
    Promenade mathématique : La suite de Fibonacci et le nombre d’or, ppt 9,4 Mo, 82 p.

April 18 - 21, 2013, Linköping (Sweden)
    Meeting of the Committee for Developing Countries, European Mathematical Society.

Mardi 30 avril 2013, Institut Henri Poincaré (IHP), Paris.
    Association Science Ouverte. Exposé sur La conjecture abc     screen pdf: 7.4 Mo, 131 p.     print pdf: 7.5 Mo, 20 p.

4 au 10 mai 2013,
    Faculté des Mathématiques, Université des Sciences et de la Technologie Houari-Boumediène (USTHB), Faculté des mathématiques, Alger (Algérie)
        Du 5 au 8 mai: Cours de cryptographie. Voir le polycopié d'Alain Kraus.
    Dimanche 5 mai, cours : Cryptographie, une introduction élémentaire; (powerpoint ppt file, 2,9 Mo, 89 p.); version à imprimer: pdf 23p., 5,4 Mo.
    Lundi 6 mai, conférence: Jeux de cartes et de chapeaux, transmission de données et codes correcteurs d'erreurs; (powerpoint ppt file,, 4 Mo, 164 p.); version à imprimer: pdf 41p., 5,9 Mo.

May 17, Paris
    Seminar on Successful Indo--French S&T Co-operation through CEFIPRA
    Talk on Indo--French cooperation in mathematics.     screen pdf: 254 Ko, 47 p.     print pdf: 320 Ko, 10 p.

May 20-24, 2013, Italy
    May 20-21, ICTP (Trieste)
        May 20, 11:00 am, ICTP Euler Lecture Hall, terrace level, Leonardo Building
        Lecture On the abc conjecture and some of its consequences     screen pdf: 8.2 Mo, 136 p.     print pdf: 8.2 Mo, 21 p.
    May 22-24, Universita degli Studi di Udine, Dipartimento di Matematica et Informatica.
        Ciclo di conferenze della Scuola Superiore dell'Università di Udine "Storia della matematica indiana"
        May 23: The long tradition of mathematics in India: an overview.

May 28 - 30, 2013, Brussels (Belgium)
    ERC Consolidator Grant Peer Review Panel 2013

Samedi 1 juin 2013, Institut Henri Poincaré (IHP), Paris
    Meeting Emerging Regional Centres of Excellence of the Committee for the Developing Countries (CDC) of the European Mathematical Society (EMS).

Lundi 3 juin 2013, Institut Henri Poincaré (IHP), Paris
    Assemblée Générale du CIMPA (Centre International de Mathématiques Pures et Appliquées).

5 - 18 Juin 2013, Canada.
    5-12 juin: Université d'Ottawa, Département de mathématiques et de statistique
        June 8-10, 2013 Workshop on Number Theory with a view towards Transcendence and Diophantine Approximation - The Ottawa Mathematics Conference (OMC).
        Organizers: Damien Roy (University of Ottawa) and Cameron L. Stewart (University of Waterloo).
        June 8, Keynote : Families of Diophantine equations with finitely many solutions.
        11 juin 2013, Collation des grades du printemps 2013, Centre national des arts (CNA), Ottawa.
    12-18 juin: Département de mathématiques et de statistique, Université Laval Québec.
        Vendredi 14 juin 2013, 10h30, exposé Sur les équations diophantiennes: du vieux et du neuf.     screen pdf: 4.2 Mo, 91 p.     print pdf: 4.2 Mo, 13 p.

27 juin 2013, Pau.
    Université de Pau et des Pays de l'Adour, Laboratoire de Mathématiques et de leurs applications.
        Colloquium de mathématiques: Introduction à la Cryptographie fichier powerpoint, 3,8 Mo, 89 pages fichier pdf, 6,5 Mo, 23 pages.

July 1 - 5, 2013, Grenoble
    Journées Arithmétiques 2013

July 14 - August 2, 2013, Manila (Phiippines)
    Institute of Mathematics of the University of the Phiippines (Diliman campus), invited professor.
        July 15, Coding and number theory seminar: Transcendental Number Theory: recent results and open problems.     screen pdf 4.6 Mo, 90p.   print pdf 4.5 Mo, 23p.
        July 18, 4 pm, talk on Cards, hats, coins and codes. powerpoint file (161 p., 4.3 Mo)   pdf file (41 p., 5.6 Mo).
    July 22 - August 2, 2013; CIMPA-ICTP-UNESCO-MESR-MINECO-PHILIPPINES research school: Algebraic Curves over Finite Fields and Applications , Manila Report in English.
        Course on Finite Fields (77 p., 612 Ko).

August 23 - 25, 2013, Islamabad, Pakistan.
    14th International Pure Mathematics Conference 2013 (14 IPMC 2013), Preston University, Islamabad. Organized by Algebra Forum and the Pakistan Mathematical Society.
    25/08/2013: Lecture On the Brahmagupta-Fermat-Pell Equation         screen pdf: 3.2 Mo, 188 p.   print pdf: 3.2 Mo, 21 p.
    Report in English.

2 au 6 septembre 2013, Porquerolles
    5th International Conference on Algebraic Informatics

September 17 - 20, 2013, Brussels (Belgium)
    ERC Consolidator Grant Peer Review Panel 2013

30 septembre - 4 octobre 2013, Bordeaux
    Conférence Thue 150
    Talk on: Families of Diophantine Thue equations with only finitely many nontrivial solutions     screen pdf: 10.1 Mo, 116 p.     print pdf: 10.2 Mo, 18 p.

October 7 - 11, 2013, Madrid (Spain), Instituto de Ciencias Matematicas
    ICMAT 2013 Fall School on "Multiple Zeta Values, Multiple Polylogarithms, and Quantum Field Theory” (MZVQFT).
    Course: An elementary introduction to Multiple Zeta Values
    Una introduccion elemental a valores zeta multiples, notes by Fernando Chamizo Lorente, La Gaceta de la RSME, à paraître.

October 23 - 24, 2013, Basrah (Iraq),
    Second International Conference of Mathematics and its Applications, (International Advisory Board), University of Basrah.
    Report by Michel Jambu and Michel Waldschmidt.

October 29 - November 4, Mandalay University (The Republic of the Union of Myanmar, Birmanie)
    The Sixth International Conference on Science and Mathematics Education in Developing Countries, 1-3 November 2013
        Lecture On the abc conjecture and some of its consequences     screen pdf: 8.2 Mo, 138 p.     print pdf: 8.3 Mo, 21 p.
    Report in English.

November 6 - 11, 2013. Bandung (Indonesia)
    SEAMS School on Numbers, Matrices and Graphs, Institut Teknologi Bandung (ITB), November 4-16, 2013.
    An Introduction to Number Theory with applications to cryptography and coding theory, with Fidel Nemenzo and Djoko Suprijanto.
    November 6, first course: Introduction to cryptography. powerpoint file, 3,6 Mo, 96 pages pdf file, 6.2 Mo, 24 pages.
    Exercises (with solutions), 9 pages - from Weil's book Number Theory for Beginners.
    Structure of finite abelian groups, 4 pages.
    Report in English on the SEAMS School.

November 13 - 22, 2013, India
    November 14, Manipur University.
        Lecture On the abc conjecture and some of its consequences     screen pdf: 8.2 Mo, 138 p.     print pdf: 8.3 Mo, 21 p.
    November 15, Tezpur University.
        Lecture On the abc conjecture and some of its consequences     screen pdf: 8.2 Mo, 138 p.     print pdf: 8.3 Mo, 21 p.
    November 18 - 29, Fourier analysis of groups in combinatorics, CIMPA-UNESCO-MESR-MINECO-INDIA research school: North Eastern Hill University, Shillong.
        Report in English.
        Notes online.
        November 18, Presentation of CIMPA and Indo-French cooperation in Mathematics     screen pdf: 31,3 Mo, 47 p.     print pdf: 31,2 Mo, 12 p.

November 26 - 29, 2013, Papua New Guinea
    November 26 - 28, 2013, PNG University of Technology, The Papua New Guinea University of Technology, LAE:
        International Conference on Pure and Applied Mathematics ICPAM–LAE 2013,
        Lecture on Diophantine approximation with applications to dynamical systems.     screen pdf: 1.2 Mo, 103 p.     print pdf: 1.2 Mo, 14 p.
        Text to be submitted to the Proceedings of the Conference, 17p. Southeast Asian Journal of Mathematics.
    November 29, 2013, Port Moresby, Faculty of Natural and Physical Science, University of PNG (UPNG). ICPAM-LAE SATELLITE CONFERENCE.
        An elementary introduction to error correcting codes. powerpoint file (161 p., 4.3 Mo)   pdf file (41 p., 5.6 Mo).

December 1 - 4, 2013, Mumbai. December 4 - 7, 2013, Delhi.

December 7 - 14, 2013, Chennai Mathematical Institute (CMI) - The Institute of Mathematical Sciences (IMSc), Chennai, Inde.
    December 9 - 13, 2013. CMI-IMSc Joint Mathematics Colloquium, Conference on Analytic Theory of Automorphic forms.
        December 13, 2013: On Schanuel's Conjecture. screen pdf: 21 Mo, 146 p.     print pdf: 21 Mo, 21 p.

February 7-13, 2014
    Graduate School of Advanced Technology, Electronic and Computer Science , Phisico-mathematical Science, Kinki University, Iizuka, Fukuoka (Japan).
        February 10, Mathematical Sciences Colloquium, 192th lecture, Collloq. Room, 14:50-16:30, Lecture on
        Diophantine approximation with applications to dynamical systems.     screen pdf: 1.2 Mo, 103 p.     print pdf: 1.2 Mo, 14 p.

21 Février 2014: Clermont-Ferrand
    Université Blaise Pascal, Habilitation de Ta Thi Hoai An.

March 14-23, Malaysia, Bangladesh
    March 14-19, Institute of Mathematical Research (INSPEM), University Putra Malaysia, Kuala Lumpur, Malaysia.
        March 18:
            Presentation of CIMPA (Centre International de Mathématiques Pures et Appliquées):
               screen pdf: 4,4 Mo, 21 p.     print pdf: 4,3 Mo, 6 p.
            Presentation of the Committee for Developing Countries of the European Mathematical Society.
                screen pdf: 800 Ko, 15 p.     print pdf: 800 Ko, 4 p.
            Lecture on: Some of the most famous open problems in number theory.
                screen pdf: 4.1 Mo, 196 p.     print pdf: 4.1 Mo, 26 p.
        Report in English (4p.)
    March 20-22, IUB campus, Bashundhara, Dhaka, Bangladesh 18th International Mathematics Conference.
        Lecture on Diophantine approximation with applications to dynamical systems.   screen pdf: 1.2 Mo, 103 p.   print pdf: 1.2 Mo, 14 p.
        Report in English.

27 mars 2014, Nancy.
    Séminaire de Théorie des Nombres de Nancy-Metz.
    La constante d'Euler est-elle un nombre rationnel, un nombre algébrique irrationnel ou bien un nombre transcendant? screen pdf: 4,7 Mo, 22 p.     print pdf: 4,7 Mo, 131 p.