Mail: pernak [ät] math.uni-sb.de *
Adress:
Leon Pernak
Saarland University
Department of Mathematics
Building E2.4, Room 428
66113 Saarbrücken (GER)
ORCID: https://orcid.org/0009-0008-8003-0491
* If you want to send me an email, you can choose one of the following languages: German, English, French, Swedish. All others will probably go through a translation software of my choice or directly to spam if you're trying to sell me a fridge.
I am a PhD student in mathematics at the Saarland university in Germany under the supervision of Laurent Bartholdi.
My research interests are group theory, both in geometric and algorithmic aspects, in particular concerning groups acting on rooted trees. I'm also interested in automata and formal language theory.
EDT0L presentations a project together with E. Rauzy
Torsion elements in contracting self-similar groups
Word equations: From theory to applications, Berlin (GER), Oct 5-8 2026
Regensburg GAP days 2, Regensburg (GER), Jul 27-29 2026
GGNRW - Groups and Geometry in North-Rhine-Westphalia (5th meeting), Bielefeld, Jun 25 2026
GTA Gran Bilbao VII, Bilbao (ES), Apr. 20-24 2026
Research Visit Lund University, Lund (SE), Mar. 9-11 2026. Talk: Ore-quotients of subsemigroups of infinitely ended groups.
Research Visit TU Berlin, Berlin (GER), Dec. 10-12 2025. Talk: Quadratic equations in wreath products of abelian groups.
GGNRW - Groups and Geometry in North-Rhine-Westphalia (3rd meeting), Bonn, Oct. 31 2025
CANT 2025 - Combinatorics, Automata, and Number Theory, CIRM, Luminy (FR), Sep. 29-Oct. 3 2025
SFB-TRR 195 - Annual Meeting 2025, Tübingen (GER), Sep. 22-25
Summer School "Computer Algebra with OSCAR", Lambrecht (GER), Sep 15-19
HIGHLIGHTS 2025, Saarbrücken (GER), Sep 1-5 2025
World of GroupCraft V, online, Sep 1 2025 Talk: Quadratic equations in wreath products of abelian groups.
Research Visit Université de Genève, Genéve (CH), Aug 25-29 2025 Talk: Quadratic equations in wreath products of abelian groups.
Autobóz 2025, Grenaa (DK), Jul 14-18 2025
Research Visit Universität Heidelberg, Heidelberg (GER), Jul 4 2025 Talk: Quadratic equations in wreath products of abelian groups.
Universität Stuttgart - research visit, Stuttgart (GER), Jun. 30 2025. Talk: Quadratic equations in Wreath products of Abelian groups.
Research Visit KU Leuven, Campus Kulak, Kortrijk (BE), May 26-28 2025. Talk: Quadratic equations in Wreath products of Abelian groups.
YGGT XIII, Copenhagen (DK), Apr. 7-11 2025
SFB-TRR 195 Retreat 2025, Bad Münster am Stein (GER), Mar. 23-26 2025
Model Theory meets Geometric Group Theory, Münster (GER), Feb. 3-7 2025
Universität Stuttgart - research visit, Stuttgart (GER), Dec. 18-20 2024. Talk: EDT0L presented groups
Computational Group Theory and Applications, Paris (FR), Sep. 23-25 2024
Integral Structures in Geometry and Representation Theory, Paderborn (GE), Sep. 9-13 2024
The University of Manchester - research visit, Manchester (UK), Jun. 27-28 2024
New Perspectives in Computational Group Theory, Warwick (UK), Jun. 24-26 2024
Groups and Algebras in Bicocca for young Algebraists (GABY24), Milan (IT), Jun. 17-21 2024
YGGT XII, Bristol (UK), Apr. 8-12 2024
Groups, Topologies and Applications, GTA Gran Bilbao V, Bilbao (ES), Apr. 15-19 2024
Thematic Month: Groups, Dynamics, Complexity, Words, CIRM, Luminy (FR), Jan. 29-Feb. 16 2024
Geometric and Asymptotic Group Theory with Applications (GAGTA24), CIRM, Luminy (FR), Feb. 5-9 2024. Talk: Groups with EDT0L presentations
Autumn school on large scale geometry, Göttingen (GER), Oct. 9-13 2023. Talk: Tree languages and groups acting on rooted trees
SFB-TRR 195 - Annual Meeting 2024, Saarbrücken (GER), Sep. 25-28 2023
Hausdorff School: Formal Mathematics and Computer-Assisted Proving, Bonn (GER), Sep. 18-22 2023
Actions of totally disconnected locally compact groups on discrete structures, Münster (GER), Sep. 4-15
Geometric and Asymptotic Group Theory with Applications (GAGTA23) - Groups and Dynamics, Vienna (AUT), Jul. 17-21 2023
Summer school on high dimensional expanders, Ghent (BE), May 22-26 2023
Groups of dynamical origins, automata and spectra, Les Diablerets (CH), Mar. 19-24 2023
YGGT XI, Münster (GER), Feb. 13-17 2023