New posts in Cohomology

Outline of the proof that Cech cohomology and singular cohomology coincide on any locally contractible space

Which $K$-groups $K(C^*_r(G))$ are computed?

What is known about this cohomology operation?

A manifold is a homotopy type and _what_ extra structure?

Schubert calculus expressed in terms of the cotangent space of the Grassmannians

What is Homology anyway?

Has anyone seen a nice map of multiplicative cohomology theories?

Generalize Wu formula to integral cohomology classes

Meaning of the determinant of cohomology

Yoga of six functors for group representations?