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Showing 1 to 2 of 2 for “"Klassische Gruppen"”.
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Untersuchungen zu Donovans Vermutung für klassische Gruppen
In 1980, Donovan conjectured that the number of Morita equivalence classes ofblocks of finite groups with prescribed defect group is finite. In this thesisDonovan's conjecture is investigated for classical groups. First, a recenttheorem of Bonnafe and Rouquier is used to reduce Donovan'sconjecture …
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Difference equations with semisimple Galois groups in positive characteristic
Let F be a field with an automorphism sigma on F. A (linear) difference equation over F is an equation of the form sigma(y)=Ay with A in GL_n(F) and y a vector consisting of n indeterminates. There is the notion of a Picard-Vessiot ring which is in some sense a "smallest" difference ring extension …