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Abstract: D. J. Benson conjectures that the Castelnuovo-Mumford regularity of a groupcohomology ring is always zero. More generally he conjectures that thecohomology ring always has a system of parameters satisfying a property hecalls very strong quasi-regular. Using computer calculations we find that themore general conjecture holds for all groups of order less than 256.



Autor: David J. Green

Fuente: https://arxiv.org/







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