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Linear representations of algebras and groups, Lie theory, associative algebras, multilinear algebra.
2
votes
1
answer
384
views
The number of irreducible projective characters with associated factor set of any finite group
Is the number of a set of irreducible projective characters with associated factor set always strictly less than the number of the ordinary irreducible characters of a finite group G? If so, can you …
0
votes
1
answer
94
views
Different computation methods to determine the conjugacy classes of a finite extension group...
I am looking for methods to compute the conjugacy classes of any finite extension group N.G from the classes of G.