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Yorck Sommerhäuser
Recent and Upcoming Talks



 Hopf Algebras and Monoidal Categories
 Title: TBA
 Date: Tuesday, September 3  Friday, September 6, 2024
 Location: Ferrara, Italy
 Summary
 Universität Hamburg
 Title: Mapping class group actions on cohomology groups
 Date: Tuesday, June 18, 2024
 Location: Hamburg, Germany
 Summary
 Canadian Mathematical Society Summer Meeting: Session on the representation theory and geometry of quantum algebras
 Title: Hopf algebras, cohomology, and mapping class groups
 Date: Monday, June 3, 2024
 Location: Saskatoon, Canada
 Summary
 AMS Spring Western Sectional Meeting: Special session on tensor categories and noncommutative algebras
 Title: Hopf algebras and mapping class group representations
 Date: Saturday, May 4, 2024
 Location: San Francisco, USA
 Summary
 University of Alberta
 Title: Hopf algebras and their applications in topological field theory
 Date: Friday, April 12, 2024
 Location: Edmonton, Canada
 Summary
 Memorial University
 Title: Hopf algebras in categories and their extensions II
 Date: Wednesday, October 18, 2023
 Location: St. John's, Canada
 Summary
 Memorial University
 Title: Hopf algebras in categories and their extensions
 Date: Wednesday, October 4, 2023
 Location: St. John's, Canada
 Summary
 Groups, Rings, Lie and Hopf Algebras. V
 Title: YetterDrinfel'd Hopf algebras and their extensions
 Date: Wednesday, August 23, 2023
 Location: Harlow, United Kingdom
 Summary
 Tenth Congress of Romanian Mathematicians
 Title: Categorical aspects of extension theory
 Date: Tuesday, July 4, 2023
 Location: Piteşti, Romania
 Summary
 AMS Fall Western Sectional Meeting: Special session on quantum groups, Hopf algebras and applications
 Title: TBA (talk cancelled)
 Date: Saturday, October 22  Sunday, October 23, 2022
 Location: Salt Lake City, USA
 Summary
 Hopf Algebras, Monoidal Categories and Related Topics
 Title: Isomorphisms and selfduality of YetterDrinfel'd Hopf algebras
 Date: Wednesday, July 27, 2022
 Location: Bucharest, Romania
 Summary
 Joint Mathematics Meeting: Special session on Hopf algebras and tensor categories
 Title: New semisimple Hopf algebras via the biproduct construction
 Date: Thursday, April 7, 2022
 Location: Seattle, USA (virtual)
 Summary
 Memorial University
 Title: What is a Hopf algebra?
 Date: Thursday, February 17, 2022
 Location: St. John's, Canada (virtual)
 University of Costa Rica
 Title: Hopf algebras: History, achievements, and problems
 Date: Thursday, October 21, 2021
 Location: San José, Costa Rica (virtual)
 Summary
 Recording
 Mathematical Congress of the Americas: Special session on quantum symmetries
 Title: New examples of semisimple Hopf algebras
 Date: Friday, July 16, 2021
 Location: Buenos Aires, Argentina (virtual)
 Summary
 Technische Universität Dresden
 Title: Equivariant FrobeniusSchur indicators for Hopf algebras
 Date: Monday, June 14, 2021
 Location: Dresden, Germany (virtual)
 Summary
 Atlantic Algebra Centre
 Title: A short introduction to Hopf algebras
 Date: November 1026, 2020
 Location: St. John's, Canada (virtual)
 Memorial University
 Title: What is a Hopf algebra?
 Date: Thursday, September 24, 2020
 Location: St. John's, Canada
 Memorial University
 Title: What is a Hopf algebra?
 Date: Thursday, November 14, 2019
 Location: St. John's, Canada
 Summary
 AARMS Workshop at Science Atlantic
 Title: Current developments in Hopf algebra theory
 Date: Sunday, October 27, 2019
 Location: Halifax, Canada
 Summary
 International Workshop on Hopf Algebras and Tensor Categories
 Title: Cores in YetterDrinfel'd Hopf algebras: Examples
 Date: Wednesday, September 11, 2019
 Location: Nanjing, China
 Summary
 Nonassociative Algebras and Geometry
 Title: New examples of YetterDrinfel'd Hopf algebras
 Date: Friday, August 16, 2019
 Location: Norris Point, Canada
 Summary
 XXIII Coloquio Latinoamericano de Álgebra
 Title: Examples of cores in YetterDrinfel'd Hopf algebras
 Date: Monday, August 5, 2019
 Location: Mexico City, Mexico
 Summary
 Universität Hamburg
 Title: New examples of YetterDrinfel'd Hopf algebras
 Date: Tuesday, July 9, 2019
 Location: Hamburg, Germany
 Summary
 Fudan University
 Title: YetterDrinfel'd Hopf algebras
 Date: Thursday, June 6, 2019
 Location: Shanghai, China
 Summary
 East China Normal University
 Title: Hopf algebras  a short introduction
 Date: Wednesday, June 5, 2019
 Location: Shanghai, China
 Summary
 East China Normal University
 Title: Equivariant FrobeniusSchur indicators and congruence subgroups
 Date: May 29, May 30, June 3, June 4, June 10, 2019
 Location: Shanghai, China
 Summary
 AMS Spring Southeastern Sectional Meeting: Special session on Hopf algebras and their applications
 Title: Cores in YetterDrinfel'd Hopf algebras: Examples
 Date: Saturday, March 16, 2019
 Location: Auburn, USA
 Summary
 University of Alberta
 Title: A short introduction to Hopf algebras
 Date: Thursday, February 28, 2019
 Location: Edmonton, Canada
 Summary
 University of Alberta
 Title: Hopf algebras, congruence subgroups, and FrobeniusSchur indicators
 Date: Monday, February 25, 2019
 Location: Edmonton, Canada
 Summary


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