Purely Inseparable Extensions and Ramification Filtrations
Authors:
Hao Yu HU
Affiliation:
Department of Mathematics, Nanjing University, Nanjing 210093, P. R. China
Abstract:
In this article, we investigate the shift of Abbes and Saito's ramification filtrations of the absolute Galois group of a complete discrete valuation field of positive characteristic under a purely inseparable extension. We also study a functoriality property for characteristic forms.