Notre collègue Amandine Aftalion a été nommée chevalier dans l'ordre national du Mérite.

The Paris Academy of Sciences has awarded the 2025 Mathematics Medal to our colleague Anne Moreau, Professor at LMO and Director of BJH, during a formal awards ceremony on November 25, 2025.

An article about our library, entitled "In Orsay, a major mathematics library", was published on the CNRS news website.

The Chancellery of the Universities of Paris awarded formal thesis prizes to former doctoral students of the LMO. These are Tess Bouis, who defended her thesis supervised by Matthew Morrow in September 2024, and Antoine Prouff, who defended his thesis supervised by Matthieu Léautaud in June 2024.

Following the laboratory's general assembly on Friday, October 17, the members of the Orsay Mathematics Laboratory (LMO) voted in favor of the motion below with almost all votes cast (out of 349 registered members, 258 voted, including 235 in favor, 1 against, 6 abstentions, and 16 non-votes).

The members of the Orsay Mathematics Laboratory, meeting in general assembly on Friday, October 17, 2025, welcome the recognition by the supervisory bodies, Université Paris-Saclay and CNRS, of the alarming understaffing of the LMO's administrative department, a situation that has persisted for several years. They acknowledge the additional resources promised by the supervisory …

Polina Perstneva, a former doctoral student at the LMO and currently a postdoctoral researcher at the CMAP of École Polytechnique, is the recipient of the "Young Talents France 2025 L’Oréal-UNESCO Prize For Women in Science". The work recognized by this award includes her doctoral thesis at the LMO, supervised by Guy David and defended in December 2023.

Meeting in extraordinary session on Friday, October 10, 2025, the Laboratory Council of the LMO unanimously adopted the following motion:

The Laboratory Council of the Orsay Mathematics Laboratory, in light of:

— the departures of administrative staff since 2022, which have not been replaced by the CNRS and not compensated for by the University of Paris-Saclay,

— the HCERES report of June 2025, which notes the critical lack of resources in the LMO's administrative department,

— the daily experience of everyone in the laboratory,

requests that the supervisory bodies fulfill their obligations to resolve these issues and fully supports the …

It is with immense sadness that we announce the passing of our colleague and friend Gérard Laumon on Saturday morning, October 4th.

Gérard learned he was ill in July 2024, and his health deteriorated considerably over the past summer. Since then, physically very weak, he had not returned to the department. Gérard wished to continue living at home, remaining independent, for as long as possible, and only agreed to be hospitalized last Tuesday. Gérard had been in critical condition since Thursday—but remained fully lucid until the end—and on Friday evening, after the final visits from his friends, he fell asleep …

Our colleagues Patrick Gérard and Jérôme Buzzi will participate as speakers in July 2026 at the International Congress of Mathematicians (ICM 2026) in Philadelphia, in the plenary and thematic sections respectively: https://www.icm2026.org/event/ac193975-5d24-4628-8c30-ddb23de19a8b/speakers.

Four members of our laboratory have been appointed members of the Institut Universitaire de France (IUF).

Amaury Freslon and Luca Nenna have been appointed Junior IUF members.

Gilles Blanchard and Bertrand Maury have been appointed Senior IUF members.

The announcement of these new IUF appointments was relayed by Université Paris-Saclay.