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Showing 2008 · math.COShow all
2 papers · 2 filters
math.CO2008
Efficient computation of resonance varieties via Grassmannians
P. Lima-Filho, H. Schenck
Associated to the cohomology ring A of the complement X(A) of a hyperplane arrangement A in complex m-space are the resonance varieties R^k(A). The most studied of these is R^1(A),…
math.CO2008
Classes of 3-regular graphs that are (7, 2)-edge-choosable
Daniel W. Cranston, Douglas B. West
A graph is (7, 2)-edge-choosable if, for every assignment of lists of size 7 to the edges, it is possible to choose two colors for each edge from its list so that no color is chose…