Marius Leonhardt

picture of Marius

Ruprecht-Karls-Universität Heidelberg
Institut für Mathematik
Im Neuenheimer Feld 205
69120 Heidelberg

Email: mleonhardt (at) mathi (dot) uni-heidelberg (dot) de
Telephone: +49 6221 54 14841
Room number: 04.232

About me

I am a postdoc (wissenschaftlicher Mitarbeiter) at the University of Heidelberg in the group of Alexander Schmidt. I am part of the project C01 (Tame cohomology of schemes and adic spaces) of the SFB-TRR GAUS. My research focusses on studying rational points with the Chabauty–Kim method. Other research interests include the arithmetic of abelian varieties, especially the theory of complex multiplication, Shimura varieties, and related topics.

Until 2019, I did my PhD under the supervision of Tony Scholl at the University of Cambridge. In my thesis I studied extra “plectic” Galois actions on Hilbert modular varieties.

Before that I completed my studies at the University of Heidelberg (MSc), the University of Cambridge (MAST) and the Karlsruhe Institute of Technology (BSc).

Publications and Preprints


This term (SS 2023), I am giving example classes to Galois cohomology 2. As always, the material is on Mampf.

I am also organising a study group (GAUS-AG) on six functor formalism and Poincaré duality. The program is here. If you are interested in participating, please write me an email.

Moreover, I am organising the semi-regular “What is …” seminar. If you would like to give a talk, please write me an email.

For details and past teaching, click here.

Reading Groups

During my PhD I participated in several reading groups about number-theoretic topics. Details can be found here.


Here you can find a list of talks I have given at research seminars and conferences:


Here is a list of conferences and workshops I attended/plan to attend.

I am also frequently participating in the ‘Kleine AG’. Topics include for example:

Other stuff I have written

(contact me for the pdfs)

Thanks to Sam Power for his help and advice on creating this webpage.