Blocks with Defect Group boldsymbol{Q_{2^n}times C_{2^m}} and boldsymbol{SD_{2^n}times C_{2^m}} |
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Authors: | Benjamin Sambale |
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Affiliation: | 1. Mathematisches Institut, Friedrich-Schiller-Universit?t, 07743, Jena, Germany
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Abstract: | We determine the numerical invariants of blocks with defect group $Q_{2^n}times C_{2^m}$ and $SD_{2^n}times C_{2^m}$ , where $Q_{2^n}$ denotes a quaternion group of order 2 n , $C_{2^m}$ denotes a cyclic group of order 2 m , and $SD_{2^n}$ denotes a semidihedral group of order 2 n . This generalizes Olsson’s results for m?=?0. As a consequence, we prove Brauer’s k(B)-Conjecture, Olsson’s Conjecture, Brauer’s Height-Zero Conjecture, the Alperin–McKay Conjecture, Alperin’s Weight Conjecture and Robinson’s Ordinary Weight Conjecture for these blocks. Moreover, we show that the gluing problem has a unique solution in this case. This paper follows (and uses) (Sambale, J Pure Appl Algebra 216:119–125, 2012; Proc Amer Math Soc, 2012). |
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