Freie Universität Berlin

Mathematisches Institut



Prof. Dr. Dr. h. c. mult., Einstein Professor

Mail Telefon: +49-30-838-75441

Fax: +49-30-838-75386

Email: esnault(at)

  • J'arrive où je suis étranger
  • Un jour tu passes la frontière
  • D'où viens-tu mais où vas-tu donc
  • Demain qu'importe et qu'importe hier
  • Louis Aragon (from: J'arrive où je suis étranger)

  • He was my North, my South, my East, my West,
  • My working week and my Sunday rest,
  • My noon, my midnight, my talk, my song;
  • I thought that love would last for ever: I was wrong.
  • W. H. Auden (from: Stop all the clocks)

  • Es ist Unsinn   sagt die Vernunft     Es ist was es ist   sagt die Liebe
  • Es ist Unglück   sagt die Berechnung     Es ist nichts als Schmerz   sagt die Angst
  • Es ist aussichtslos   sagt die Einsicht     Es ist was es ist   sagt die Liebe
  • Es ist lächerlich   sagt der Stolz     Es ist leichtsinnig   sagt die Vorsicht
  • Es ist unmöglich   sagt die Erfahrung     Es ist was es ist   sagt die Liebe
  • Erich Fried (from: Liebesgedichte, Angstgedichte, Zorngedichte)

  • Wenn Du
  • jetzt lachen würdest,
  • so würde es dunkel tönend verhauchen-
  • Wie unendliche Nächte.
  • Aber Du lachst nicht-
  • Du träumst noch--
  • Wolfgang Borchert (for Renée Sintenis)

  • У меня сегодня много дела:
  • Надо память до конца убить,
  • Надо, чтоб душа окаменела,
  • Надо снова научиться жить,—
  • Aннa Akhmatova (from: Requiem)

  • Secretary: Beate Pierchalla
  • Telefon: +49-30-838-59389
  • Email: bpiercha(at)

    Current Events:

    MSRI Derived Algebraic Geometry, Jan. 22-May 24 2019

    MSRI Birational Geometry and Moduli Spaces, Jan. 22-May 24 2019

    Caltech, Linde Hall Inaugural Math Symposium, Feb. 22-Feb. 24 2019

    Kolleg Mathematik und Physik

    DFG Priority Programme "Homotopy Theory and Algebraic Geometry" SPP 1786

    Past Events:

    ARITHMETIC ALGEBRAIC GEOMETRY Conference FU Berlin, June 10--14, 2013

    Conference Multi Zeta Values in Mathematics and Phyiscs (October 1-5 2013)

    Forschungsseminar WS 2012/2013: Deligne's Finiteness Theorem

    Forschungsseminar SS 2013: p-adic period map (after Beilinson)

    Seminar SS 2013, with Dirk Kreimer, HU: Feynman Graphs in Quantum Field Theory and Algebraic Geometry

    Forschungsseminar WS 2013/14: Higher dimensional class field theory and ramification (after Kerz and al.)

    Master-PhDetc..seminar WS 2013/14: Higher dimensional class field theory and ramification

    Forschungsseminar SS 14: Pro-étale Cohomology (after Bhatt-Scholze)

    GAeL Géométrie Algébrique en Liberté (June 2014)

    Clay Mathematics Institute Summer School 2014

    School in Lukecin Sept.8--12, 2014: Topics in characteristic p>0 and p-adic geometry

    Forschungsseminar WS 2014/15: "Chow groups of zero cycles over p-adic fields"

    AMS Summer Institute Algebraic Geometry 2015/ Arithmetic Geometry: July 27-31

    Forschungsseminar SS 2015: "Families of rationally simply connected varieties" after de Jong-He-Starr

    Guest seminar SS 2015

    Day of Arithmetic and Algebraic Geometry, March 12, 2015

    Santalo Lecture 2015

    Forschungsseminar WS 2015/16: Supersingular K3 surfaces are unirational

    Guest seminar WS 2015/16

    Forschungsseminar WS 2015/16: Topological Hochschild Homology and the de Rham-Witt Complex

    Rademacher Lecture Series 2015-2016

    Workshop: Generalizations of A^1-Homotopy Invariance in Algebraic Geometry and Homotopy Theory

    Forschungsseminar SoSe 2016: Motivic Galois Theory and Periods

    Guest seminar SoSe 2016

    Kolleg Mathematik und Physik

    Day of Algebraic and Arithmetic Geometry, Leibniz room of the Berlin Accademy, May 20-th 2016, Lectures by R. Pandharipande, E. Kowalski and V. Srinivas.

    Forschungsseminar WiSe 2016: Berkovich spaces, singularity theory and birational geometry

    Guest seminar WiSe 2016

    Forschungsseminar SoSe 2017: Langlands correspondence for function fields

    Guest seminar SoSe 2017

    The 19-th Andrzej Jankowski Memorial Lecture, Gdansk, May 5, 2017

    Fundamental Groups in Arithmetic Geometry, Tuan Chau, Halong Bay, Vietnam, May 22-25, 2017

    K-Theory and Related Fields, Hausdorff Center Bonn, May 8 - August 31, 2017

    Higgs bundles, K3 surfaces and moduli, Humboldt Universität zu Berlin, July 10-12, 2017

    Summer School Algebra and Geometry, Yaroslav, July 25-31, 2017

    Motives for Periods, Freie Universität Berlin, August 28-September 1, 2017

    Instruments of Algebraic Geometry, Bucharest, September 11-22, 2017

    Arbeitsgemeinschaft à la française : Period Mappings, from complex to p-adic, Tatihou, September 26-30, 2017

    Forschungsseminar WiSe 2017/2018: p-adic Simpson correspondence

    Guest seminar WiSe 2017/2018

    Algebraic Geometry with ''fancy'' coefficients, Caen, November 13-17, 2017

    Forschungsseminar SoSe 2018: Michael Groechenig gives a mini-course on epsilon factors

    Guest seminar SoSe 2018

    Grothendieck 90, BMS Friday, June 15 2018, Urania, Moritz Kerz and Carlos Simpson

    Forschungsseminar WiSe 2018: A new proof of Mordell conjecture (Faltings' theorem) after Lawrence-Venkatesh (Marcin Lara, Shuddhodan)

    Guest seminar WiSe 2018/2019

    TIFR, Mumbai, Geometry, Local and Global, Oct. 1-5 2018, in honor of Srinivas' 60th birthday

    Hanoi, Arithmetic Geometry and de Rham Theory, Dec. 3-6, 2018


    Winter 2018-19

    Sommer 2018:
    Course: Number Theory II (=Number Fields) (Hélène Esnault, ex. Lei Zhang)
    Seminar on Abhyankar's conjecture (Marco d'Addezio and Marcin Lara)
    Seminar on Differential Galois Theory (Simon Pépin Lehalleur)
    Students' seminars (Simon Pépin Lehalleur, Tohru Kohrita, Lei Zhang)

    Winter 2017/2018:
    Course: Number Theory I (Commutative Algebra) (Hélène Esnault, ex. Shane Kelly)
    Seminar Formal Geometry and Deformation Theory (Pedro Angel Castillejo Blasco and Tanya Kaushal Srivastava)
    Seminar Mathematics of Data Science (Shane Kelly)
    Course: Crystals and Crystalline Cohomology (Lei Zhang)
    Course: Algebra und Zahlentheorie (Kay Rülling)

    Summer 2017:
    Course: Number Theory II (=Number Fields) (Hélène Esnault, ex. Lei Zhang)
    Seminar on p-adic Hodge Theory (Tanya Kaushal Srivastava and Marcin Lara)
    Course on Models of curves and abelian varieties (Simon Pépin Lehalleur)
    Seminar on infinity categories (Shane Kelly)
    Four students' seminars (Lars Kindler, Shane Kelly, Lei Zhang)

    Winter 2016/17:
    Course: Number Theory III (=Class Field Theory) (Hélène Esnault, ex. Lars Kindler)
    Seminar on crystalline cohomology (Tanya Kaushal Srivastava and Efstathia Katsigianni)
    Course on étale cohomology (Lei Zhang)
    Three students' seminars (Lars Kindler, Shane Kelly)

    Summer 2016:
    Course: Number Theory II (Hélène Esnault, ex. Valentina di Proietto)
    Seminar on D-modules (Elena Lavanda and Wouter Zomervrucht)
    Two students' seminars on Algebraic Groups (Lei Zhang) and Riemann Surfaces (Valentina Di Proietto)

    Winter 2015/16:
    Course: Number Theory I (=Commutative Algebra) (Hélène Esnault, ex. Valentina di Proietto)
    Course: Elliptic Curves (Kay Rülling)
    Seminar on Intersection Theory (Pedro Castillejo and Yun Hao)
    Two students' seminars (Valentina Di Proietto, Lei Zhang)

    Summer 2015:
    Course: Number Theory II (Lars Kindler)
    Advanced Course: Fundamental Groups in Algebraic Arithmetic Geometry (Hélène Esnault)
    Three students' seminars (Valentina Di Proietto, Lei Zhang)

    Winter 2014/15: Algebraic Number Theory III (Kay Rülling) and two seminars (Lars Kindler, Lei Zhang)

    Course SS14: Algebraic Number Theory II

    Course WS13: Algebra 1 (Commutative algebra)

    Course SS13: Algebraic Number Theory II

  • Luminy, Dec. 19th, 2018: Why do you love mathematics?

  • Elmau, May 4th, 2018: p-Curvature of Connections, Geometricity and Integrality of Local Systems

  • Sackler Distinguished Lecture I, Tel Aviv, Nov. 7th, 2016: Linear Differential Equations with Algebraic Solutions

  • Sackler Distinguished Lecture II, Tel Aviv, Nov. 9th, 2016: D-Modules and Finite Monodromy

  • Lectures at the AMS Summer Research Institute Algebraic Geometry, Utah, July 27th-28th-30th, 2015: Some Fundamental Groups in Arithmetic Geometry

  • Lecture at the Bibiothèque Nationale de France, Jan. 15th, 2014: 1+1=0; Monsieur Weil, est-ce bien rationnel?
    Slides, Video

  • List of publications
    List of publications as a web page (with links for downloads).


    electronic versions of two books.

    Back to the main page of our research group