Robin J. Sroka
I am a Postdoctoral Research Associate at the University of Münster working in the research areas ``Arithmetic and Groups'' and ``Spaces and Operators''. I am a member of the Cluster of Excellence ``Mathematics Münster'' and the Collaborative Research Centre ``Geometry: Deformations and Rigidity''.
From September 2021 to August 2023, I was a Postdoctoral Fellow in the ``Geometry & Topology'' group at McMaster University working under the mentorship of Ian Hambleton. From January to April 2022, I participated in the research program ``Higher algebraic structures in algebra, topology and geometry'' at Institut MittagLeffler as a Junior Fellow. In September 2021, I completed my PhD studies at the University of Copenhagen under the supervision of Nathalie Wahl.
Contact
Mathematisches Institut
Universität Münster
Einsteinstrasse 62
48149 Münster, Germany
Office 513
robinjsroka[at]unimuenster.de
Research
I am interested in algebraic topology, geometric group theory, and geometric topology.
My PhD thesis, ``Patterns in the homology of algebras: Vanishing, stability, and higher structures'', is available here.
Benjamin Brück and I form the Young Research Group ``Highdimensional cohomology of arithmetic groups'' at the Cluster of Excellence ``Mathematics Münster''.
Activities & Organization
Publications & Preprints

Scissors automorphism groups and their homology.
‣ with Alexander Kupers, Ezekiel Lemann, Cary Malkiewich, and Jeremy Miller.
‣ arXiv, Aug 2024.

Partial bases and homological stability of GL_n(R) revisited.
‣ with Calista Bernard and Jeremy Miller.
‣ arXiv, May 2024.

Simplicial bounded cohomology and stability.
‣ with Thorben Kastenholz.
‣ arXiv, Sep 2023.

A presentation of symplectic Steinberg modules and cohomology of Sp_2n(ℤ).
‣ with Benjamin Brück and Peter Patzt.
‣ arXiv, Jun 2023.

Apartment classes of integral symplectic groups.
‣ with Benjamin Brück.
‣ To appear in Journal of Topology and Analysis.
‣ arXiv, May 2023.

On the topdimensional cohomology of arithmetic Chevalley groups.
‣ with Benjamin Brück and Yuri Santos Rego.
‣ Published in Proceedings of the American Mathematical Society.
‣ arXiv, Oct 2022. Journal, Aug 2024.

On the codimensiontwo cohomology of SL_n(ℤ).
‣ with Benjamin Brück, Jeremy Miller, Peter Patzt and Jennifer C. H. Wilson.
‣ Published in Advances in Mathematics.
‣ arXiv, Apr 2022. Journal, Jun 2024.

The homology of a TemperleyLieb algebra on an odd number of strands.
‣ Published in Algebraic & Geometric Topology.
‣ arXiv, Feb 2022. Journal, Oct 2024.
Talks & Travel

TBA.
‣ (planned for) Jan 30, 2025. Aprèsmidi de topologie, Université Paris Cité.

TBA.
‣ (planned for) Jan 7, 2025. Oberseminar C*Algebren, Universität Münster.

TBA.
‣ (planned for) Nov 28, 2024. Analysis Seminar, University of Glasgow.

Scissors automorphism groups and their homology.
‣ (planned for) Nov 27, 2024. Differential Geometry & Topology Seminar, University of Cambridge.

Homological stability: From algebraic Ktheory to bounded cohomology, scissors congruence and dynamics.
‣ Jul 23, 2024. Geometry and Topology Seminar, McMaster University.

Scissors automorphism groups and their homology.
‣ Jul 9, 2024. ``Scissors congruences, algebraic Ktheory and Steinberg modules'', American Institute of Mathematics.

Homological stability and Ktheory.
‣ Jun 14, 2024. Oberseminar Algebra und Geometrie, Heinrich Heine University Düsseldorf.

Homological stability and Ktheory.
‣ Jun 13, 2024. Wilhelm Killing Kolloquium: Postdocs of Mathematics Münster, University of Münster.

Highdimensional rational cohomology of arithmetric groups I & II.
‣ May 28 and Jun 4, 2024. Mittagsseminar zur Arithmetik, University of Münster.
‣ with Benjamin Brück.

Homological stability, Ktheory and topological full groups: On recent work of Xin Li.
‣ May 27, 2024. Expository talk, Kleines Seminar, University of Münster.

Highdimensional cohomology of arithmetic Chevalley groups.
‣ Mar 25, 2024. Poster at ``Mathematics Münster Midterm Conference'', University of Münster.
‣ with Benjamin Brück.

Simplicial bounded cohomology and stability.
‣ Feb 8, 2024. AG Algebraic and Geometric Topology, Karlsruhe Institute of Technology.

Steinberg modules and (co)homology of arithmetic groups.
‣ Jan 16, 2024. Topological Activities, Stockholm University.

Simplicial bounded cohomology and stability.
‣ Dec 11, 2023. IYSBCSV Seminar (online).

Steinberg modules and highdimensional rational cohomology of symplectic groups.
‣ Nov 8, 2023. Algebra and Number Theory Seminar, University of Glasgow.

Steinberg modules and highdimensional rational cohomology of symplectic groups.
‣ Oct 25, 2023. Oberseminar Topologie, University of Münster.

Simplicial bounded cohomology and stability.
‣ Jul 20, 2023. ``Stability in Topology, Arithmetic, and Representation Theory 2023'', Purdue University.

On the highdimensional rational cohomology of arithmetic Chevalley groups.
‣ Apr 13, 2023. Topology Seminar, University of Michigan.

On the highdimensional rational cohomology of arithmetic Chevalley groups.
‣ Dec 19, 2022. COGENT Seminar (online).

On the highdimensional rational cohomology of arithmetic Chevalley groups.
‣ Dec 5, 2022. Topology Seminar (online), University of Minnesota.

Partial bases and homological stability for general linear groups revisited.
‣ Oct 12, 2022. Purdue Topology Seminar, Purdue University.

The homology of a TemperleyLieb algebra on an odd number of strands.
‣ Mar 23, 2022. IMUNAM Algebraic Topology Seminar (online), National Autonomous University of Mexico.

On the highdimensional rational cohomology of special linear groups.
‣ Jan 21, 2022. ``Higher algebraic structures in algebra, topology and geometry'', Institut MittagLeffler.

Patterns in the homology of IwahoriHecke algebras.
‣ Dec 14, 2021. Geometry and Topology Seminar, McMaster University.

On the highdimensional rational cohomology of special linear groups.
‣ Nov 1, 2021. Geometry & Topology Seminar, University of Toronto.

On the highdimensional rational cohomology of symplectic groups.
‣ Jul 1, 2021. ``High dimensional cohomology of moduli spaces'', University of Copenhagen.

Algebraic analogues of coset posets and the low dimensional homology of IwahoriHecke algebras.
‣ Aug 21, 2020. ``Simplicial complexes workshop'', University of Copenhagen.
Oct 23, 2024