Previous events

SFB Lecture

• SFB Lecture

SFB Seminar

• SFB Seminar

Conferences and Workshops

2025

• Conference Higher Invariants: interactions between arithmetic geometry and global analysis, October 6.-10., 2025 organized by Ulrich Bunke, Denis-Charles Cisinski and Guido Kings
• Block seminar on Scalar curvature rigidity, September 28- October 3, 2025, Sulzbürg, close to Neumarkt (Oberpfalz/Bavaria), organized by Bernd Ammann, Klaus Kröncke (KTH Stockholm) and Hartmut Weiß (Kiel)
• Motives, L-values and Eisenstein series, September 22.-26., 2025 organized by Johannes Sprang and George Tamme
• Regensburg GAP days, July 28.-30., 2025 organized by Chiara Sabadin, Eleni Hübner-Rosenau, Malena Wasmeier, Matthias Uschold
• C*-Algebras, Coarse Geometry and Physics June 23-27, 2025 organized by Matthias Ludewig, Guo Chuan Thiang and Alexander Engel
• Motivic homotopy theory, March 17-21, 2025
• Interactions between C*-algebraic KK-theory and homotopy theory, January 7-17, 2025 (online) organized by Benjamin Dünzinger, Yigal Kamel and Fredrick Mooers
• Block seminar on Seiberg-Witten theory, February 23-28, Youth Hostel Ratzeburg, organized by Bernd Ammann, Hans-Joachim Hein (Münster) and Hartmut Weiß (Kiel)

2024

• Windberg Junior SFB Meeting, October 01-05, 2024, organized by Katrin Henkel, Clara Otte, Johannes Glossner and Zhenghang Du.
• 4-manifolds & algorithms, September 9-13, 2024, organized by Stefan Friedl and Marc Kegel
• European Talbot workshop 2024, 29 July - 2 Aug, 2024, organized by C. Scheimbauer, Luciana Basualdo Bonatto, Daniel Bermudez, Alice Hedenlund, Hyeonhee Jin, Yuqing Shi, and Filippos Sytilidis
• Conference"Non-Archimedean and Tropical Geometry", July 22-26, 2024, organized by Debam Biswas, Enrica Mazzon and Léonard Pille-Schneider
• Summer School "Interactions between algebra, equivariance, and homotopy theory", June 24-28, 2024, organized by Luca Pol and Jordan Williamson
• Conference "From Analysis to Homotopy Theory" in honor of Ulrich Bunke's 60th Birthday, May 13-17, 2024 at Greifswald, organized by Bernd Ammann, Thomas Nikolaus, George Raptis and Konrad Waldorf
• "12th Bavarian Geometry and Topology Meeting", April 8-9, 2024, organized by Bastiaan Cnossen, Benjamin Dünzinger and Kevin Li
• Conference "Nearby cycles and derived geometry", February 26-March 1, 2024, organized by Denis-Charles Cisinski and Marc Hoyois

2023

• Windberg Junior SFB Meeting, Location, Programme October 04-07, 2023, organized by Katrin Henkel, Luca Pol, Jana Nickel, Johannes Glossner and Benjamin Dünzinger
• Conference "Swiss Knots", September 6-8, 2023,organized by Peter Feller (ETHZ), Lukas Lewark (Regensburg)
• Summer School and Workshop "Interactions of Proof Assistants and Mathematics", September 18-29, 2023, organized by Clara Löh, Denis-Charles Cisinski, Philipp Rümmer
• Conference "Functorial Field Theory", August 14-18, 2023, organized by Matthias Ludewig and Claudia Scheimbauer (Poster)
• Conference "Transatlantic transchromatic conference II - Andy Baker 70", July 31 - August, 04, 2023, organized by T. Barthel, D. Heard, N. Naumann (Regensburg), L. Pol (Regensburg), N. Stapleton
• Workshop Algebraic K-theory of spaces, July 24-28, 2023, organized by George Raptis and Christoph Winges
• Regensburg days on non-archimedean geometry July 25th-27th 2023, workshop organized by Walter Gubler, Klaus Künnemann, and Enrica Mazzon
• KFZM-Conference: Gauge theory and its application to geometry and low-dimensional topology (Conference by the Kepler-Forschungszentrum Mathematik), July 17-21, organized by Bernd Ammann (Regensburg), Stefan Friedl (Regensburg), Raphael Zentner (Durham UK)
• Conference "Geometric analysis", March 7-11, 2023, organized by Bernd Ammann (Regensburg), Gilles Carron (Nantes), and Kazuo Akutagawa (Tokyo)

2022

• Block seminar about "Construction and degeneration of Einstein 4-manifolds", Sulzbürg (close to Neumarkt), October 03-08, 2022
• Windberg Junior SFB Meeting, October 05-08, 2022.
• Recent advances in bounded cohomology, September 26-30, 2022.
• "Motives in Ratisbona, September 12-16, 2022.
• Young Researchers' Conference on Non-Archimedean and Tropical Geometry, August 01 - August 05, 2022.
• Dynamics, Foliations, and Geometry II, January 31 - February 04, 2022, Regensburg / Creswick (hybrid).

2021

• 9th Bavarian Geometry & Topology Meeting, 16-17 December, Augsburg.
• Windberg Junior SFB Meeting, November 17-21, 2021.
• Arakelov Geometry, September 6-10, 2021
• Perspectives on quantum link homology theories, August 9-15, 2021
• K-Theory and Motives, July 19-23, 2021, CANCELLED
• 8th Bavarian Geometry & Topology Meeting, July 16, 2021 (online)
• Eisenstein Series and Equivariant Cohomology, July 5-7, 2021

2020

• 7th Bavarian Geometry & Topology Meeting December 4, 2020.
• Mathematik und Gender – ein Paradoxon? (Kurzworkshop-Reihe – eine Einführung ins Thema Gender, in German). November 11, December 2 and December 9, 2020.
• Meeting Windberg 06.10.-09.10.2020
• Virtual workshop: Simplicial Volumes and Bounded Cohomology 21.09.-25.09.2020
• Higher Categories and Geometry 31.08.2020-04.09.2020 CANCELLED!
• Conference on Transchromatic Homotopy Theory II 03.08.-07.08.2020 POSTPONED TO 2023!
• European Talbot Workshop 2020, 19.07.2020-25.07.2020 CANCELLED!
• Number theory days in Regensburg 27.04.2020-30.04.2020 CANCELLED!

2019

• Meeting Windberg 08.12.-11.12.2019
• Bavarian Geometry & Topology Meeting IV Augsburg, 5-6 December 2019
• Regional Arbeitstagung/workshop on Foliations 24.10.-26.10.2019
• Low-Dimensional Topology Workshop 21.10.-23.10.2019
• Workshop "Regensburg days on non-archimedean and tropical geometry" 30.9.-2.10.2019
• Autumn School "Computations in motivic homotopy theory'' 16.09.-20.09.2019
• Young Researchers' conference on Non-Archimedean and Tropical Geometry 29.07.-02.08.2019
• European Talbot 2019 07.07.-13.07.2019
• Bavarian Geometry and Topology Meeting V 04.07.-05.07.2019
• Derivators 09.04.-12.04.2019
• Workshop: Riemannian and Simplicial Volume 08.04.-11.04.2019
• Ph.D. students' mini-course on Stable Homotopy Theory 01.04.-05.04.2019

2018

• Analytical problems in conformal geometry and applications 17.09.-21.09.2018
• Special Metrics and Symmetries on Complex Manifolds 11.09-14.09.2018
• Seminar on Determination, K-Theory and Epsilon-Factor 09.-10.08.2018
• Eurotalbot 2018 29.07.-04.08.2018
• Conference: Gauge theory and applications 23.07.-27.07.2018
• Summer school: Gauge theory and applications 17.07.-20.07.2018
• 3rd Bavarian Geometry & Topology Meeting 11.07.-12.07.2018
• Homotopy Theory Workshop 05.05.2018

2017

• Manifolds and Groups 2017 25.09.-29.09.2017
• Non-Positively Curved Groups and Spaces 18.09.-22.09.2017
• Student's conference on Nonarchimedean and Tropical Geometry 31.07.-04.08.2017
• Regional Geometry and Topology Meeting 23.06.2017
• Conference on Transchromatic Homotopy Theory 06.06.-09.06.2017
• Conference on Invertibility and Duality in Derived Algebraic Geometry and Homotopy Theory 03.04.-07.04.2017

2016

• Winter School "Bordism, L-theory, and real algebraic K-theory" 05.12.-09.12.2016
• Conference "Arakelov Geometry - Archimedean and Non-Archimedean Aspects" 05.09.-09.09.2016
• Workshop "Large Scale Dimensions" 25.07.-29.07.2016
• Workshop "3-manifolds and Floer theories" 19.07.-22.07.2016
• Workshop "Regensburg days on non-archimedean geometry" 13.07.-14.07.2016
• Workshop "Women in Numbers Regensburg" 28.06.2016

2015

• Summer School: Algebraic K-theory and Trace Methods 03.08.2015 - 07.08.2015
• Summer School: Cohomology and Large Scale Geometry 27.07.2015 - 31.07.2015
• Second Research group meeting on Chern classes in bounded cohomology 20.07.2015 - 24.07.2015
• Spring School: Algebraic K-theory of Topological Algebras 16.03.2015-20.03.2015
• First Research group meeting on Chern classes in bounded cohomology 23.02.2015 - 27.02.2015

2014

• Continuous K-theory of p-adic rings September 29-October 2, 2014
• Opening Conference September 22-26, 2014
• Modular Invariants in Topology and Analysis September 8-12, 2014

Courses and seminars

Winter Semester 2025/2026

• Windberg Junior SFB Meeting[1], October 15.-18., 2025 organized by Carolyn Echter, Christoph Fronhöfer and Malena Wasmeier

Summer Semester 2025

• Algebraic K-theory (Hoyois), Lecture
• Seminar on etale cohomology (Kerz), Seminar
• Seiberg-Witten theory (Ammann), Seminar
• Seminar on Pseudo-holomorphic curves and Floer homology (Ammann), Seminar
• Galois Representations and L-functions (Sabadin, de Mello), Seminar(GRIPS-Link)
• Introduction to Higher Algebra (Cnossen), Lecture
• Topics in Topology (Friedl), Lecture
• Knot Theory (Friedl), Lecture
• Diophantine Geometry II (Gubler), Lecture
• Introduction to derived algebraic geometry (Hekking), Lecture
• A^1-invariance in algebraic geometry (Hoyois), Seminar
• Complex linear differential equations (Kerz), Lecture(GRIPS-Link)
• Non-Archimedean Banach Algebras (Künnemann), Lecture
• Chromatic Homotopy Theory (Linskens), Lecture
• Arithmetic of quadratic forms (Kerz, Echter, Zhou), Seminar(GRIPS-Link)
• The Bloch-Kato conjecture (Hoyois, Kipp)
• AG-Seminar (Ammann)
• Oberseminar Globale Analysis (Ammann, Bunke, Friedl, Löh, Pilca)
• AG-Seminar (Kings)
• Oberseminar Arakelovtheorie (Gubler, Künnemann)
• LKS-Seminar (Friedl, Löh)
• HIOB

Winter Semester 2024/2025

• HIOB
• AG-Seminar (Kings)
• Oberseminar on parametrized semiadditivity (Denis-Charles Cisinski, Bastiaan Cnossen, Sil Linskens)
• AG-Seminar (Kerz)(GRIPS-Link)
• AG-Seminar (Bunke)
• Oberseminar Globale Analysis (Ammann, Bunke, Friedl, Löh, Pilca)
• LKS-Seminar (Friedl, Löh)
• Oberseminar Arakelovtheorie (Gubler, Künnemann)
• AG-Seminar (Ammann)
• AG-Seminar (Kipp, Cisinski)
• Introduction to Stable Homotopy Theory (Cnossen), Lecture
• The coarse Baum Connes conjecture (Bunke), Lecture
• Seminar on Advanced Differential Geometry (Ammann), Seminar
• Class field theory (Ziegler, Kerz), Seminar
• Abelian Varieties (de Mello)
• Topological K-theory and vector fields on spheres (Winges)
• PhD Seminar

Summer Semester 2024

• Differential Cohomology (Bunke), Lecture
• Differential Geometry II (Ammann), Lecture
• Modular Forms (de Mello Bezerra), Seminar
• Formalization of higher category theory II (Cisinski), Lecture
• Lie groups and representation theory (Cnossen), Lecture
• Algebraic topology III.5 (Friedl), Lecture
• Algebraic Geometry II (Gubler), Lecture
• Cohomology of Sheaves and Schemes (Gubler), Seminar
• Algebraic Topology II (Hoyois), Lecture
• Introduction to Condensed Mathematics (Naumann), Lecture
• Stratifolds and singular (co)homology (Raptis), Seminar
• Cut-and-paste invariants of manifolds (Raptis), Lecture
• K-theory of finite fields (Bertizzolo, Raptis), Seminar
• Classical algebraic K-theory (Schäppi), Lecture
• Grothendieck ring of varieties and birational geometry (Sechin), Seminar
• Riemannian Gromov-Hausdorff convergence and weighted differential operators (Ammann), Seminar
• Oberseminar on the chromatic Nullstellensatz (Naumann)
• AG-Seminar (Kerz)
• Motivic spectra (Hoyois, Kipp)
• AG-Seminar (Bunke)
• Oberseminar Globale Analysis (Ammann, Bunke, Friedl, Löh, Pilca)
• LKS-Seminar (Friedl, Löh)
• Oberseminar Arakelovtheorie (Gubler, Künnemann)
• Research seminar on arithmetic geometry (Kufner)
• AG-Seminar (Ammann)
• HIOB

Winter Semester 2023/2024

• Higher Invariants Oberseminar (HIOB): Perfectoid spaces and applications
• Formalization of higher category theory (Cisinski), Lecture
• Knot theory (Friedl), Lecture
• Decision problems in groups (Löh, Uschold, Hofmann), Seminar
• On the Birch-Swinnerton-Dyer conjecture for elliptic curves with complex multiplication (Kings), Lecture
• Group cohomology (Li), Lecture
• Acyclic maps and the plus construction (Raptis), Lecture
• Localisation and devissage in algebraic K-theory (Winges), Lecture
• Functorial field theory (Ammann, Ludewig), Seminar
• Characteristic classes and index theory (Ammann, Ludewig), Lecture
• On the 6-functor formalism (following Scholze) (Cisinski, Naumann und Scheimbauer), Seminar
• Oberseminar The P¹-Freudenthal suspension theorem (Hoyois, Sechin)
• AG-Seminar (Bunke, Raptis, Cisinski)
• Oberseminar Globale Analysis (Ammann, Bunke, Friedl, Löh, Pilca)
• LKS-Seminar (Friedl, Löh)
• Arakelov Seminar (Gubler, Künnemann)
• AG-Seminar (Kings)
• AG-Seminar (Ammann)

Summer Semester 2023

• Index Theory (Ludewig)
• Noncommutative Homotopy Theory II (Bunke)
• Symplectic Geometry (Ammann)
• Higher Invariants Oberseminar (HIOB): Chromatic Homotopy Theory
• Seminar on semiclassical analysis
• Oberseminar Globale Analysis (Ammann, Bunke, Friedl, Löh, Pilca)
• Oberseminar Selmer K-theory (Hoyois)
• AG-Seminar (Bunke, Raptis, Cisinski)
• LKS-Seminar (Friedl, Löh)
• Arakelov Seminar (Gubler, Künnemann)
• AG-Seminar (Ammann, Ludewig)
• AG-Seminar (Kings)

Winter Semester 2022/2023

• homotopy theory (Hoyois)
• Seminar on semiclassical analysis
• Higher Invariants Oberseminar (HIOB): Condensed Mathematics and Applications
• AG-Seminar
• Oberseminar Globale Analysis (Ammann, Bunke, Friedl, Löh, Pilca)
• Oberseminar Absolute prismatic cohomology (Hoyois)
• AG-Seminar (Bunke, Raptis, Cisinski)
• LKS-Seminar (Friedl, Löh)
• Arakelov Seminar (Gubler, Künnemann)
• AG-Seminar (Ammann, Ludewig)
• AG-Seminar (Kings)

Summer Semester 2022

• International Young Seminars on Bounded Cohomology and Simplicial Volume
• Higher Invariants Oberseminar (HIOB): D-Modules
• AG-Seminar

Winter Semester 2021/2022

• Higher Invariants Oberseminar (HIOB): Aspherical Manifolds
• AG-Seminar
• International Young Seminars on Bounded Cohomology and Simplicial Volume

Summer Semester 2021

• Higher Invariants Oberseminar (HIOB)
• AG Seminar
• International Young Seminars on Bounded Cohomology and Simplicial Volume
• Seminar on the h-principle, Tuesday 16-18
• Regensburg low-dimensional geometry and topology seminar

Winter Semester 2020/21

• Oberseminar: Hermitian K-theory for stable ∞-categories
• AG-Seminar
• Higher Invariants Oberseminar (HIOB)
• International young seminar on bounded cohomology and simplicial volume
• Oberseminar: Arakelovtheorie (Gubler, Künnemann)

Summer Semester 2020

• HIOB 2020:
• International young seminar on bounded cohomology and simplicial volume
• Seminar on Condensed/Pyknotic Mathematics
• AG-Seminar
• Oberseminar: Arakelovtheorie (Gubler, Künnemann)

Winter Semester 2019/2020

• Seminar: Prismatic cohomology
• AG-Seminar 2019/2020
• HIOB 2019/2020: Étale Homotopy Type
• AG-Seminar (Kerz) 2019/2020
• Seminar: Topics in Higher Category Theory
• Oberseminar: Arakelovtheorie (Gubler, Künnemann)

Summer Semester 2019

• Higher Invariants Oberseminar (HIOB) SS2019
• K-theory seminar SS19
• Oberseminar: Arakelovtheorie (Gubler, Künnemann)

Winter Semester 2018/19

• Higher Invariants Oberseminar (HIOB) WS2018/19
• K-theory seminar
• Motivic Sheaves WS 2018/19
• Oberseminar: Arakelovtheorie (Gubler, Künnemann)

Summer Semester 2018

• Higher Invariants Oberseminar SS2018
• AG-Seminar_(Kerz)
• Motivic Sheaves SS2018
• LKS Seminar (Friedl, Löh)
• Oberseminar: Arakelovtheorie (Gubler, Künnemann)

Winter Semester 2017/18

• Higher Invariants Oberseminar WS 2017/2018
• Motivic sheaves WS 2017/2018
• LKS Seminar (Friedl, Löh)
• Oberseminar: Arakelovtheorie (Gubler, Künnemann)

Summer Semester 2017

• Higher Invariants Oberseminar SS 2017
• AG-Seminar (Kerz) SS2017
• LKS Seminar (Friedl, Löh)
• Oberseminar: Arakelovtheorie (Gubler, Künnemann)

Winter Semester 2016/17

• Seminar on the Hopkins-Morel-Hoyois isomorphism
• Higher Invariants Oberseminar WS16/17
• Oberseminar Arakelov-Theorie WS 16/17
• AG-Seminar (Kerz)
• LKS Seminar (Friedl, Löh)
• Oberseminar Arithmetische Geometrie (Kings)
• Seminar Homological Stability (Bunke)
• Oberseminar: Arakelovtheorie (Gubler, Künnemann)

Summer Semester 2016

• AG-Seminar (Jannsen/Kerz)
• Higher Invariants Oberseminar SoSe16
• Course on coarse geometry (Bunke)
• AG-Seminar (Bunke)
• Oberseminar Arithmetische Geometrie (Kings)
• Seminar Coxeter Groups (Löh/Marcinkowski)
• Seminar Topics in Higher Category Theory (Noel/Raptis)
• LKS Seminar (Friedl, Löh)
• Oberseminar: Arakelovtheorie (Gubler, Künnemann)

Winter Semester 2015/16

• Lecture Series Prof. Dr. I. Burgos Gil, ICMAT Madrid (Abstract)
• AG-Seminar (Kerz)
• Higher Invariants Oberseminar (HIOB)
• AG-Seminar (Bunke)
• Oberseminar Arithmetische Geometrie (Kings)
• Seminar Transfers, Umkehr maps and Riemann-Roch type theorems (Engel/Raptis)
• Course Introduction to infinity-categories (Noel/Raptis)
• Course Large scale geometry and index theory (Engel)
• LKS Seminar (Friedl, Löh)
• Oberseminar: Arakelovtheorie (Gubler, Künnemann)

Summer Semester 2015

• Higher Invariants Oberseminar (HIOB)
• Oberseminar: Arakelovtheorie (Gubler, Künnemann)
• Oberseminar Arithmetische Geometrie (Kings)
• Oberseminar 2015: Tamagawa number conjecture (Naumann)
• Course Etale cohomology (Jannsen)
• Seminar Berkovich spaces (Gubler/Künnemann)
• Seminar Calabi Conjecture and special holonomy (Ammann)
• Seminar Homotopical algebra -- Model categories (Raptis)
• Seminar Spaces of manifolds and metrics of positive scalar curvature (Ammann/Bunke/Raptis)
• LKS Seminar (Friedl, Löh)

Winter Semester 2014/15

• AG-Seminar (Bunke)
• Higher Invariants Seminar (Kings)
• Seminar Metrics of positive scalar curvature (Ammann/Bunke)
• Oberseminar: Arakelovtheorie (Gubler, Künnemann)
• Course Triangulated categories (Raventos)
• Seminar L2-Invariants (Friedl/Zentner)

Summer Semester 2014

• AG-Seminar (Bunke)
• Oberseminar Topology (TMF) (Bunke)
• Seminar K-theory of p-adic algebras (Kerz/Jannsen/Naumann/Kings)
• Seminar Bounded cohomology (Löh)]
• Oberseminar: Arakelovtheorie (Gubler, Künnemann)

Videos

• collection of Higher Invariants videos I (Conference on invertible objects and duality in derived algebraic geometry and homotopy theory)
• collection of Higher Invariants videos II (The Transatlantic Transchromatic Homotopy Theory Conference)
• collection of Higher Invariants videos III (Conference: Gauge Theory and Applications)