In order to avoid misunderstandings, the term 'genus' was removed in the documentation. Actually, in terms of topology this expression even seems to be wrong for the additive case!
CC: @egourgoulhon @tscrim
Component: geometry
Keywords: characteristic classes, vector bundles
Author: Michael Jung
Branch/Commit: a94b358
Reviewer: Varenyam Bakshi
Issue created by migration from https://trac.sagemath.org/ticket/28854