Abstract:
In my talk, I will discuss the bound on the rank of an abelian $p$-group acting
faithfully on a smooth $K$-scheme, where $K$ is an algebraically closed field of
characteristic different from $p$. This result was established in the work of J.
Kollár and Z. Zhuang. The proof relies on methods from equivariant
characteristic class theory, which will also be briefly outlined in the talk.