Tal Gottesman

office: IB 2/97
eMail: tal.gottesman(AT)ruhr-uni-bochum.de

Ruhr Universität Bochum
Fakultät für Mathematik
Uni­ver­si­täts­stra­ße 150
D-44780 Bo­chum 13

Curriculum vitae.

I will be a post doc in Prof. Dr. Karin Baur's team at the Ruhr-Universität Bochum (RUB) until september 2027. From september 2021 to october 2024, I was a Phd student under the supervision of Baptiste Rognerud at the IMJ-PRG in Paris.

Research

I am interested in the representation theory of finite dimensional algebras. During my PhD I worked on incidence algebras of finite lattices.I am looking to learn more about how to construct geometric models for the objects I have encountered so far.

Publications

• Antichains in the representation theory of finite Lattices, in Seminaire Lotharingien de Combinatoire 91B (2024), available here.
• Fractionally Calabi-Yau Lattices that tilt to higher Auslander Algebras of type A, in Advances in Mathematics Volume 488.Preprint available here.

Preprints

• Pure minimal injective resolutions and perfect modules for lattices,joint work with Viktória Klász, Markus Kleinau and Rene Marczinzik, submitted. Preprint available here.

Teaching

Here are the courses for which I wrote some material. For a complete list of courses and exercise classes I have taught, you can have a look at my cv.

• Together with Azzurra Ciliberti I taught a class on Category Theory during the Winter semester 2025/2026 at the RUB. More information
• Examples classes for Quivers, Algebras and Representations at the Ruhr-Universität Bochum. Winter semester 2024/2025. More information
• Oral examinations ("colles") at Université Paris Cité. Spring 2022. More information

C.A.R.E.

Since 2025 I am part of the CARE initiative together with Alice Bouillet, Luca Casarin, Luca Francone, Matilde Maccan and Calla Tchanz. CARE stands for Collaborations in Algebra, Representation Theory and Ethics. Here are some CARE events I take/took part in the organisation of.

• CARE 2025 conference in Lyon
• We still CARE: online informal discussions on ethics in academia. Feel free to write to me if you want to be added to the mailing list
• Up comming: CARE 2026 in Bochum

More information can be found about all three of these events on our website.

Documents

• In 2024 I defended my thesis on Fractionally Calabi-Yau Lattices. Here are the slides I used during my presentation.