New posts in Homology Cohomology

Does de Rham theorem hold for manifolds with boundary?

Can we simultaneously realize arbitrary homotopy groups and arbitrary homology groups?

Homology group of Real projective plane

Homology Whitehead theorem for non simply connected spaces

Why homology with coefficients?

Top homology of a manifold with boundary

What is the difference between $\ell$-adic cohomology and cohomology with coefficient in $Z_\ell$?

How do I know when a form represents an integral cohomology class?

Homology of $S^1 \times (S^1 \vee S^1)$

Finitely generated singular homology