Groups of components and Weil restriction

Abstract

We determine the behavior under Weil restriction of the group of connected components of the special fiber of an arbitrary smooth group scheme (whose Weil restriction exists) over an arbitrary (commutative and unital) local ring. Applications to Néron models are given.

7 pages. We decided not to publish it for the moment

References in corpus (1)

• Grothendieck's pairing on Neron component groups: Galois descent from the semistable case