Torsion endo-trivial modules

We prove that the group T(G) of endo-trivial modules for a non-cyclic finite p-group G is detected on restriction to the family of subgroups which are either elementary abelian of rank 2 or (almost) extraspecial. This result is closely related to the problem of finding the torsion subgroup of T(G). We give the complete structure of T(G) when G is dihedral, semi-dihedral, or quaternion.


Published in:
Algebr. Represent. Theory, 3, 4, 303-335
Year:
2000
Keywords:
Laboratories:




 Record created 2008-12-16, last modified 2018-03-17

n/a:
Download fulltext
DVI

Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)