ON BLOCKS OF NORMAL SUBGROUPS OF FINITE GROUPS
2013
For a block b of a normal subgroup of a finite group G, E.C. Dade has defined a subgroup G[b] of G. We give a character-theoretical interpretation of his res ult on G[b]. In the course of proofs we determine a defect group of a block of G[b] covering b. We also consider character-theoretical characterizatio ns of isomorphic blocks with respect to normal subgroups.
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