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20112023
most citedAutomorphisms of metacyclic groups

7 citations · 45 across the 32 of their papers we have counts for

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Showing 2011Show all

3 papers · 1 filter

math.CO2011★ 2 cited

Lifting automorphisms along abelian regular coverings of graphs

Haimiao Chen

This article proposes an effective criterion for lifting automorphisms along regular coverings of graphs, with the covering transformation group being any finite abelian group.

math.GT2011★ 7 cited

Applying TQFT to count regular coverings of Seifert 3-manifolds

Haimiao Chen

I give a formula for computing the number of regular -coverings of closed orientable Seifert 3-manifolds, for a given finite group . The number is computed using a 3d TQFT wi…

math.AT2011

Twisted Lefschetz number and Nielsen number

Haimiao Chen

We study the twisted Lefschetz number, which is a generalization of classical Lefschetz number. A formula in terms of homology with local coefficients is given. We then propose a m…