Galois Action on Class Groups, by Franz Lemmermeyer

Galois Action on Class Groups, by Franz Lemmermeyer

It is well known that the Galois group of an extension puts constraints on the structure of the relative ideal class groups. Using only basic parts of the theory of group representations, we give a unified approach to such results.

galact.dvi (59580 bytes) [2002 May 23]
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Franz Lemmermeyer <franzl@csusm.edu>