72 citations
- International Center for Transitional JusticeUS114 papers
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Showing 2011 · math.COShow all
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math.CO2011★ 19 cited
Non-orientable quasi-trees for the Bollobas-Riordan polynomial
Fabien Vignes-Tourneret
We extend the quasi-tree expansion of A. Champanerkar, I. Kofman, and N. Stoltzfus to not necessarily orientable ribbon graphs. We study the duality properties of the Bollobas-Rior…
math.CO2011
Enumerating Projective Reflection Groups
Riccardo Biagioli, Fabrizio Caselli
Projective re ection groups have been recently dened by the second author. They include a special class of groups denoted G(r; p; s; n) which contains all classical Weyl groups and…