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Speaker:
Geoffroy Horel
Affiliation:
Université Sorbonne Paris Nord
Date:
Tue, 12/11/2024 - 14:00 - 15:00
Location:
MPIM Lecture Hall
Parent event:
Workshop on "Unstable Homotopy Theory" I will explain how to approach the question of $E_2$-formality of differential graded algebras over a prime field via obstruction theory. In particular, $E_2$-algebras whose cohomology ring is a polynomial algebra on even degree classes are intrinsically formal. As a consequence we can prove $E_2$-formality of the classifying space of some compact Lie group or of Davis-Januszkiewicz spaces.
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