Pyber's logarithmic lower-bound conjecture for subgroup coverings of finite abelian groups
Pyber's logarithmic lower-bound conjecture for subgroup coverings of finite abelian groups
Let be a finite abelian group, and let denote the minimum number of subgroups in an irredundant subgroup covering of whose intersection is trivial, with if no such covering exists.
Pyber's conjecture. There exists a fixed constant such that
for every finite abelian group .
This asks for a logarithmic lower bound on the number of subgroups needed to cover finite abelian groups irredundantly with trivial intersection. The source gives no resolution, so the conjecture is treated as open.
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Sources & referencesView supporting material
Primary source
Balazs Szegedy, “Coverings of abelian groups and vector spaces”, arXiv:math/0411244 (2004).
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