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Presented By: Department of Mathematics

Algebraic Topology Seminar

Equivariant Lazard rings, cobordism, and deformation

I will talk about my joint work with Yunze Lu. While my talk will be self-contained, it can be considered a follow-up of the talk by Markus Hausmann in the sense that I will discuss a different proof of universality of the equivariant formal group laws on stable complex cobordism rings. Our proof leads to a presentation of equivariant Lazard rings as "deformations" of the non-equivariant Lazard ring. There is surprisingly little overlap with the presentations found by Po Hu or with the global homotopy theory approach to universality. Speaker(s): Igor Kriz (University of Michigan)

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