Set covering and Serre' s theorem on the cohomology algebra of a p-group
Date
2001-11-1
Authors
Yalcin, E.
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We define a group theoretical invariant, denoted by s(G), as a solution of a certain set covering problem and show that it is closely related to chl(G), the cohomology length of a p-group G. By studying s(G) we improve the known upper bounds for the cohomology length of a p-group and determine chl(G) completely for extra-special 2-groups of real type. © 2001 Academic Press.
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Journal of Algebra
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Academic Press
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English