LINEAR-MAPS OVER ABELIAN GROUP-ALGEBRAS

Authors
Citation
A. Adem et Rg. Swan, LINEAR-MAPS OVER ABELIAN GROUP-ALGEBRAS, Journal of pure and applied algebra, 104(1), 1995, pp. 1-7
Citations number
2
Categorie Soggetti
Mathematics, Pure",Mathematics,Mathematics,Mathematics
ISSN journal
00224049
Volume
104
Issue
1
Year of publication
1995
Pages
1 - 7
Database
ISI
SICI code
0022-4049(1995)104:1<1:LOAG>2.0.ZU;2-7
Abstract
Let G be a finite abelian p-group, and K a field of characteristic p. In this paper we show that if F is a free KG module and Psi is an elem ent of End(KG)(F) is not an isomorphism, then dim(k) Ker Psi greater t han or equal to \G\/exp(G). This result sheds some light on questions related to finite, free G-CW complexes as well as having applications to modular representation theory.