New posts in Characteristic Classes

Calculate the Wu class from the Stiefel-Whitney class

An alternative description of the first Stiefel-Whitney class

On the smooth structure of $\mathbb{R}P^n$ in Milnor's book on characteristic classes.

How to interpret the Euler class?

Chern Classes of a Trivial Bundle

A binary operation on vector bundles that adds Chern classes?

Is the cohomology ring $H^*(BG,\mathbb{Z})$ generated by Euler classes?

Can one disjoin any submanifold in $\mathbb R^n$ from itself by a $C^{\infty}$-small isotopy?

Why is the first integral Pontryagin class a homeomorphism invariant?

Stiefel-Whitney class of an orthogonal representation