Hi, I'm Stiéphen!
I started my PhD at the University of Nottingham in October 2022 under Nicolai Kraus' supervision and co-supervised by Tom de Jong. My research lies mainly in higher category theory and homotopy theory, focusing on models of weak and semistrict higher categories and question related to Simpson's conjectures. I have also worked in homotopy type theory (HoTT).
Previously, I completed a master's degree in pure mathematics at Sorbonne University (UPMC, Paris VI) specialising in homotopy and higher category theory, with a master's thesis supervised by Clemens Berger.
I gave a talk at the [Higher Structures in Category Theory, Homotopy Theory and Type Theory] meeting, see Talks.
I presented a poster at the [Young Homotopy-Theorist Meeting], see Talks.
I attended the Higher Structures [Workshop] and [Summer School], and I gave a speed talk, see Talks.
I gave a talk at [CT2025] (13-19th July 2025, Brno, Czechia), see Talks.
My new preprint [On combinatorial aspects of fat Delta] was released on the arXiv.
Our new preprint on [A study of Kock's fat Delta] was released on the arXiv.
I gave an invited talk at the [Aberdeen Topology Seminar] (3rd February 2025, Aberdeen, UK), see Talks.
I gave a speed talk at [YaMCATS 36] (24th January 2025, Leeds, UK), see Talks.
I gave a talk at the [Categorical Logic and Higher Categories workshop] (16-19th December 2024, Manchester, UK), see Talks.
I attended the conference on a [Contemporary glimpses on Grothendieck’s mathematics post-IHES] (4-6th December 2024, Toulouse, France)
I gave a talk at [PSSL 109th] (15-17th November 2024, Leiden, Netherlands) about "A study of Kock's fat Delta", see Talks.
I gave a talk at [TYPES 2023] on [Categories as Semicategories with identities], see Talks.
Since October 2023, I co-organise the weekly local [FP Lunch] seminar (with Mark Williams).