Conferences/Workshops/Summer Schools etc.


2025

Motives and Arithmetic Geometry, July 28-August 01, TU Darmstadt, Darmstadt, Germany

Scissors Congruence and K-theory, July 14-17, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Polylogarithms, homology of linear groups, and Steinberg modules, June 08-13, SwissMAP Research Station (SRS), Les Diablerets, Switzerland

35th NRW topology meeting, May 23-24, Universität Osnabrück, Osnabrück, Germany

Workshop: Lurie's Elliptic Cohomology, March 31-April 04, BUW, Wuppertal, Germany


2024

34th NRW topology meeting, November 22-23, Universität Bielefeld, Bielefeld, Germany

Collaborative Workshop in K-theory and Scissors Congruence, July 29-August 02, VU, Nashville, Tennessee, USA

PCMI 2024 Research Program: Motivic Homotopy Theory, July 13-27, PCMI, Park City, Utah, USA

Scissors congruences, algebraic K-theory and Steinberg modules, July 08-12, AIM, Pasadena, California, USA

33rd NRW Topology Meeting, April 26-27, BUW, Wuppertal, Germany

Winter school on unstable motivic homotopy theory, March 11-15, JGU, Mainz, Germany


2023

Algebraic K-theory and Redshift Fall school, September 18-22, JGU, Mainz, Germany

Young Topologists Meeting 2023, July 24-28, EPFL, Lausanne, Switzerland

Homotopy theory, K-theory and trace methods, July 05-07, Radboud University Nijmegen, Nijmegen, Netherlands

Motivic and non-commutative aspects of enumerative geometry, July 03-05, Radboud University Nijmegen, Nijmegen, Netherlands

Summer School on Scissors Congruence, Algebraic K-theory, and Trace Methods, June 26-30, IU, Bloomington, Indiana, USA

Talbot 2023: Computations in motivic stable homotopy theory, June 04-10, The Shire in the woods, McGrath, Minnesota, USA


2022

• Co-organizer of Summer School on Motivic Integration, September 12-16, HHU, Düsseldorf, Germany

Harnessing motivic invariants, June 27-July 01, UDE, Essen, Germany

ICM 2022 Satellite "Motives and Related Topics", June 27-July 01, St. Petersburg, Russia

    replaced by "Harnessing motivic invariants"

Algebraic K-theory, motivic cohomology and motivic homotopy theory, June 13-17, Isaac Newton Institute for Mathematical Sciences, Cambridge, UK

Grothendieck ring and Derived category: a gathering, April 27-28, Università di Torino, Turin, Italy


2021

Unifying Themes in Geometry, September 27-30, Lake Como School of Advanced Studies, Como, Italy

Summer School and Conference on Six Functor Formalism and Motivic Homotopy Theory, September 20-24, Università degli Studi di Milano, Milan, Italy

Summer school on derived and triangulated categories, September 13-17, BUW, Wuppertal, Germany

2021 Graduate Summer School: An introduction to motivic homotopy theory and its applications, July 12-16, IAS/PCMI, Princeton, New Jersey, USA

Toposes online, June 24-26, 28-30,  IHÉS, Bures-sur-Yvette, France

Masterclass: Non-Archimedean Geometry Techniques in Mirror Symmetry, June 22-26, KU/UCPH, Copenhagen, Denmark

    cancelled due to Covid-19

Bring your own coffee: K-theory and related topics, May 25-26, UofT, Toronto, Canada

Masterclass: Scissors congruence, then and now, KU/UCPH, Copenhagen, Denmark

    cancelled due to Covid-19


2020

Felix Klein Lectures 2020: Quiver moduli and applications, October 20-29, HCM, Bonn, Germany

Summer school on derived and triangulated categories, September 14-18, BUW, Wuppertal, Germany 

    postponed due to Covid-19

Summer School: An introduction to the Langlands correspondence, June 15-19, Centro di Ricerca Matematica Ennio De Giorgi, Pisa, Italy 

    cancelled due to Covid-19

2020 Summer Tropical Algebraic Geometry Online SeminAUR (STAGOSAUR): Top Weight Cohomology of Moduli Spaces of Curves, June 12-August 07

Fifth international workshop on zeta functions in algebra and geometry, May 25-29, Laboratoire J.A. Dieudonné, Nice, France 

    postponed due to Covid-19

Western algebraic geometry online (WAGON): A virtual edition of WAGS, April 18-19

Group theory days in Düsseldorf, January 20-21, HHU, Düsseldorf, Germany


2019

32nd NRW Topology Meeting, November 08-09, HHU, Düsseldorf, Germany

Workshop: Del Pezzo surfaces and Fano varieties, July 22-26, HHU, Düsseldorf, Germany