Thomas Seiller

I am CNRS researcher (Chargé de Recherche) working in the LoVe team at the LIPN laboratory.

I am the scientific secretary (and board member) of the current (2021-2026) Section 06 of the National Committee for Scientific Research (CoNRS). I was also part of the previous Section 06 for a short time (Jan. 2021 - Aug. 2021).

Curriculum Vitae

You can find my CV (in english) here: September 2021.

Some Upcoming Events

(Participant) Shonan Meeting on New Directions and Challenges in Interactive Semantics, October 19th-22nd 2020, October 25th-28th 2021, November 7th-10th 2022, Shonan Village, Japan
(Organiser) Workshop and Conference on Geometric Complexity Theory, January 17th-28th 2022, CMI, Chennai, India
(Organiser) CALeidoscope 2023, EPIT summer school, June 2023, France

Past Events

CALeidoscope 2021, Cancelled due to the COVID-19 epidemic.
November 2020.Journée Opérades LAGA-LIPN 2020, Villetaneuse, France.
June 2020. CALeidoscope 2020, Cancelled due to the COVID-19 epidemic.
June 2019. CALeidoscope 2019, Summer School on Complexity Theory, IHP, Paris, France.

The Lo Seminar and Working Group

I organise both of the Lo (the "logic" in the "LoVe" team) working group and seminars. I created and maintain a public calendar with all events related to the team, as well as information about the upcoming seminars (titles, time and rooms).

It is accessible here: GdT-Lo Calendar.

Selection of Recent Invited Talks

April 27th, 2021. Mathematical Foundations seminar, University of Bath (online), UK. Slides.
October 2019. Shonan Meeting on Higher-order Complexity Theory and its Applications, Shonan Village, Japan.
July 8th, 2019. Logic and Computational Complexity (LCC), satellite event of ICALP 2019, Patras, Greece.
June 29-30th, 2019. Structures and Deduction (SD) and Trends in Linear Logic and Applications (TLLA) joint invited talk, satellite events of FSCD 2019, Dortmund, Germany.
May 15th, 2019. HEPIC seminar (Histoire et Philosophy de l'Informatique et du Calcul), IHPST, Paris.
November 5-6th, 2018. Colloque "Le même et l’autre : identité, orthogonalité, types", Lyon, France.
October 17-18th, 2018. Journées inaugurales "Logique, Homotopie, Catégories, Marseille, France. Website. Slides.
June 18-20th, 2018. Cologne-Twente Workshop on Graphs and Combinatorial Optimisation. Paris, France. Website. Slides.
June 12-13th, 2018. Workshop on Realisability. CIRM, Marseille, France. Slides.
November 14th, 2017. Logical Time and Computational Time. Lyon, France. Website.Poster.
November 9th, 2017. CHOCOLA Seminar. Lyon, France. Website.
October 25th, 2017. Thirty Years of Linear Logic. Rome, Italy. Website. Poster.Slides.

Current Team

Ulysse Léchine, PhD student from September 2021, co-supervised by Stefano Guerrini and Geoffroy Couteau. Topic: Average-case complexity, entropy, and one-way functions.
Thomas Rubiano, Postdoc from June 2021 (CoHoP project, funded by DIM RFSI and the Ile-de-France region).
William Troiani, PhD student from December 2020, dual PhD with the University of Melbourne (supervisor in Melbourne: Daniel Murfet). Topic: Mathematical foundations of the proofs-as-programs correspondence, and its connections with Singular Learning.
Boris Eng, PhD student from October 2019 cosupervised by Damiano Mazza, M2 intern March-August 2019. Topic: Geometry of Interaction and Space Complexity.
Pierre-Yves Coursolle, PhD student from September 2018, cosupervised by Emmanuel Haucourt.
Lê Thành Dũng Nguyễn, PhD student from September 2018, M2 intern January-July 2018, cosupervised by Stefano Guerrini. Topic: Combinatorics for a geometry of computation.

Past Members

Maxime Lucas, Postdoc from September 2020 to May 2021 (CoHoP project, funded by DIM RFSI and the Ile-de-France region).
Seng Beng Goh, Third year student from Cambridge University, June-September 2018.
Derek So, Third year student from Cambridge University, June-September 2019.
Paul Séjourné, Third year student from Paris 4 University, February-June 2020.


You can contact me if you wish to do an internship with me. You will find some examples of internship proposals below.

Measurable Game Semanticspdf
Effects in Interaction Graphspdf
Geometric Complexity Theorypdf
Abstract State Machines and PTimepdf
Dependent Types in Realisability Models of Linear Logicpdf
Formalising Transcendental Syntaxpdf
Les espaces cohérents comme modèle du 𝜆-calcul polymorphepdf
The mathematisation of algorithmicspdf

Previous Positions

In 2015-2018, I was a Marie Curie postdoctoral researcher at the Datalogisk Institute (Computer Science Department) of the University of Copenhagen (DIKU).
In 2014-2015, I was a postdoctoral researcher in PPS, working in the french ANR project CoQuaS.
In 2013-2014, I was a postdoc at the Institut des Hautes Etudes Scientifiques (Carmin Fellowship).
In 2012-2013, I was a post-doctoral researcher at the INRIA, working at the Departement of Mathematics of the Savoie University in Chambéry (France), in the Logic, Computer Science and Discrete Mathematics team.
Before being in Chambéry, I prepared a PhD in mathematics entitled Logic in the Hyperfinite Factor: Geometry of interaction and complexity at the Luminy Institute of Mathematics under the direction of Jean-Yves Girard and Laurent Regnier. My work concerns mainly the geometry of interaction program and its applications to computational complexity. Even though my thesis was written in french, I wrote a short (20 pages) description in english: pdf.


Past Events
May 2018. Working Group on Transcendental Syntax and Workshop on Proof Nets, GDRI Linear Logic meeting, Villetaneuse, France.

ReACT Project
I worked (from 2015 to 2018) at the Computer Science Department of the University of Copenhagen (DIKU). This stay is funded by the European Union through a Marie Curie action. More details can be found on the project page.

DICE 2016.
I was in the program committee of the 2016 edition of DICE (Developments in Implicit Computational complExity), an ETAPS workshop. Don't hesitate to submit and/or participate to the upcoming edition!

Séances de Mathématiques.
I organized, when at the IML, a seminar called "Séances de Mathématiques" during the year 2010-2011 (it was then continued when I left but has withered since then). The scheduled reunion as well as some documents (all in french) are still available on the page Séances de Mathématiques.

PhD Students Project
I also co-organized a project involving PhD students from several french universities about logic and philosophy. All informations (in french) can be found on the webpage Projet Doctorant.

Working Group
I organized, during my first years at the IML, a working group on Girard's hyperfinite geometry of interaction. This working group stopped its activities since it was replaced by the French ANR Project LOGOI. The meetings' schedule is still available on the Working Group page.