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5 votes
2 answers
2k views

Canonical reference for Chern characteristic classes

I'm a little uncertain about the definitions for Chern roots Chern classes Chern characters From perusing several discussions, I gather that if one correlates the nomenclature with that of ...
Tom Copeland's user avatar
  • 10.5k
10 votes
1 answer
389 views

Operads and the Stable Module Category

I am seeking references to places where operads and their algebras have been studied for the stable module category. Colored operads are fine too. Let $k$ be a field and $R$ a $k$-algebra. The stable ...
David White's user avatar
  • 30.3k
9 votes
3 answers
2k views

Borel's presentation for the cohomology of a Flag Variety

If $G$ is a simple complex Lie group, $T\subset B\subset G$ is a choice of Borel and maximal torus, and $W$ is the Weyl group, then 1) $H^{*}(G/B,K)=K[T^{\vee}]/(K[T^\vee]^W_{+})$ and 2) $K[T^\vee]^...
DCT's user avatar
  • 1,537
7 votes
1 answer
292 views

Homotopy fixed points of involutive automorphisms of discrete groups

$\DeclareMathOperator\Map{Map}$Precis: I am looking for a reference/explanation of a (general) computation of homotopy fixed points $(BG)^{h\Gamma}$ of a finite group $\Gamma$ acting on a discrete (...
rvk's user avatar
  • 563