Seminar

Bordism of commuting involutions

Higher algebraic structures in algebra, topology and geometry

03 February 14:15 - 16:00

Markus Hausmann - Stockholm University

The bordism ring of manifolds equipped with an involution was computed additively by Conner-Floyd (1965) and multiplicatively by Alexander (1972). Alexander's description is explicit but complicated and doesn't seem to enjoy a simple algebraic interpretation.

In this talk I will discuss that if one extends the problem and

1) considers the family of bordism rings of manifolds with n commuting involutions for all n, and

2) takes into account the representation sphere-grading,

then there is a simple algebraic universal property. This is joint work with Stefan Schwede.

 

Click here to watch the seminar

Organizers
Gregory Arone
Stockholm University
Tilman Bauer
KTH Royal Institute of Technology
Alexander Berglund
Stockholm University
Søren Galatius
University of Copenhagen
Jesper Grodal,
University of Copenhagen
Thomas Kragh
Uppsala University

Program
Contact

Alexander Berglund

alexb@math.su.se

Søren Galatius

galatius@math.ku.dk

Thomas Kragh

thomas.kragh@math.uu.se

Other
information

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