Home About People Events Research Positions Guest programme Impressum

From Higher Invariants

Virtual workshop: Simplicial Volumes and Bounded Cohomology

Dates and Location

This workshop will take place during the week September 21--25, 2020 in a virtual format. We will try to create an atmosphere similar to usual workshops by providing ample opportunities for interaction outside of the talks. All the virtual rooms are supported by Universität Regensburg (Fakultät für Mathematik)

Aims and Scope

The aim of this virtual workshop is to bring together researchers and students interested in simplicial volumes, bounded cohomology and their applications.

List of Speakers

  • Michael Brandenbursky (Ben-Gurion University)
  • Diego Corro (UNAM)
  • Carlos De la Cruz Mengual (Weizmann Institute)
  • James Farre (Yale University)
  • Tsachik Gelander (Weizmann Institute)
  • Nicolaus Heuer (University of Cambridge)
  • Alessandra Iozzi (ETHZ)
  • Michał Marcinkowski (Polish Academy of Sciences)
  • Nicolas Monod (EPFL)
  • Maria Beatrice Pozzetti (Heidelberg University)
  • Stéphane Sabourau (University of Paris-Est Créteil)
  • Roman Sauer (KIT)
  • Alessio Savini (University of Geneva)
  • Alessandro Sisto (Heriot-Watt University)
  • Shi Wang (MPIM Bonn)

Schedule and Abstracts

The schedule is now available. Here you may find the titles and the abstracts.

  • Slides: Here you may find the slides of some talks:

Recorded videos

  • Monday 21.09:
  • Tuesday 22.09:
  • Wednesday 23.09:
    • Michał Marcinkowski: video.
    • Nicolaus Heuer: video.
    • Alessandro Sisto: video.
  • Thursday 24.09:
  • Friday 25.09:
    • Carlos De la Cruz Mengual: video.
    • Michael Brandenbursky: video.
    • Nicolas Monod: video.

Financial Support

This workshop is part of the events linked to the DFG project SFB 1085 Higher Invariants (Regensburg).


The registration is now closed. Later applications will be accepted, but for organizational reasons we will not be able to take your preferences into account. In addition, we are planning to record most of the talks and make them available on the website.

Practical Information

  • Core interaction time: Most of the participants will be active from 9 AM to 8 PM UTC+2 (Germany). However, fell free to organize private meetings at any time you prefer.
  • Live Talks and official coffee breaks: Zoom Meeting ID: 944 2986 5961. The password is the answer to the following riddle (single word, no capital letters, just the adjective): A Riemannian manifold with sectional curvature constant -1 (for instance, if the answer were "flat manifold" just insert flat).
  • Informal meetings and discussions: The Zoom Meeting ID: 946 8444 3761 will be constanly open from 9 AM to 8 PM UTC+2 (Germany) for informal meetings and discussions. You can enter it and see if you meet somebody there or you can simply arrange to meet some people there. The password is the answer to the following riddle (single word, no capital letters): A bottle from which you cannot drink (it ends with n and not with e).
  • Other meetings: You can always arrange new private meetings in small groups via the jitsi server meet.ur.de.
  • Chat: we have opened a slack account for the workshop (please contact the organizers to get access to the channel).
    • This is meant as a chat device for all the participants. The messages can be directed at the whole group or at certain persons only.
    • We have created several channels already: one for informal spontaneous interaction (#general), one for scheduling mathematical discussions in small groups (#coffeebreaklinks), one for open problems (#openproblems).
    • For example, you can use the jitsi server meet.ur.de for video conversations in small groups and share the link in #coffeebreaklinks, so that other people can find you.
    • We shall also create channels related to each talk of the workshop in order to ask and answer the non live questions there. You can initiate a channel yourself. You are all encouraged to register starting now with a recognizable name, and to keep your status (available or not to be disturbed) up-to-date during the workshop week.
  • Recorded talks: All talks will be recorded and stored on the Mediathek of the University of Regensburg. For your convenience the link for each talk will be posted here at the end of each day.
  • Travel information: Stay at home!