About me
I am a Monge Professor (tenure-track assistant professor) at École Polytechnique. Previously, I was the inaugural Edixhoven Postdoctoral Fellow at Leiden University, and before that I was an Emily Erskine Endowment Fund Postdoctoral Fellow at the Einstein Institute of Mathematics.
Education
- PhD in Mathematics, McGill University, supervisor: Henri Darmon, defended on May 20, 2021
- MSc in Mathematics, Ecole Polytechnique Fédérale de Lausanne, supervisor: Eva Bayer-Fluckiger, 2016
- Master Thesis, Harvard University (exchange semester), supervisor: Benedict Gross, Fall 2015
- BSc in Mathematics, Ecole Polytechnique Fédérale de Lausanne, 2014
Updates
- 15/06/26-18/06/26 : Going to a conference at CIRM.
- 03/06/26 : New paper with Brunault and Nemoto on K4 of Fermat curves is available (pdf).
- 17/02/26 : Talk in Goûtéminaire at CMLS.
- 10/02/26 : Talk in Séminaire Théorie des Nombres of Université Marie et Louis Pasteur.
- 21/01/26-23/01/26 : Visiting ENS Lyon.
- 14/01/26 : Talk in Séminaire Raconte-moi of ENS Paris.
- 25/11/25 : Talk in Séminaire RGR of Aix-Marseille Université.
- 07/11/25 : I am co-organizing the Goûtéminaire du CMLS at École Polytechnique.
- 06/11/25 : Talk in Journée de Rentrée du CMLS at École Polytechnique.
- 13/10/25 : Elected member of the CMLS department committee.
- 24/09/25 : Paper on polylog Chabauty accepted to ANT.
- 01/09/25 : Start of new position at École Polytechnique.
- 22/08/25 : Talk at Darmonfest in Montreal.
- 10/06/25 : Talk in Number Theory Seminar of University of Cambridge.
Research interests
My interests lie in algebraic number theory and arithmetic geometry
with a special emphasis on modular forms, elliptic curves, algebraic cycles
and special values of L-functions.
I am also interested in rational points on higher genus curves.
Contact
Centre de Mathématiques Laurent Schwartz
École Polytechnique
Bâtiment 6, Bureau 1009
91120 Palaiseau
Email: david [dot] lilienfeldt [at] polytechnique [dot] edu