Mini-course: Polynomial functors on free groups and on topological spaces after Arone

Time:

Venue/Location: C101 ( March 25); C102 ( March 27), (VIASM), Hanoi

Speaker: Prof. Aurélien Djament, Sorbonne Paris North University, France;

Abstract: These talks will give a survey of recent results of Arone (arXiv 2025) on polynomial functors from free groups to chain complexes of abelian groups, with application to computation of extension groups between functors from free groups fo abelian groups which recover earlier Vespa's computations and allow to go further. This is mainly motivated by the use of such Ext groups to compute stable cohomology of automorphism groups of free groups with some twisted coefficients. This approach uses excessive functors à la Goodwillie.

Mode of participation: Hybrid

Link Zoom: Join Zoom Meeting

https://zoom.us/j/96151934051?pwd=sXoKly8psjVRbzGZHhiGKXP5MPu1IF.1

Meeting ID: 961 5193 4051

Passcode: 947691