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math.AC2015
The weak Lefschetz property for monomial ideals of small type
David Cook, Uwe Nagel
In this work a combinatorial approach towards the weak Lefschetz property is developed that relates this property to enumerations of signed perfect matchings as well as to enumerat…
math.CO2015★ 3 cited
Signed lozenge tilings
David Cook, Uwe Nagel
It is well-known that plane partitions, lozenge tilings of a hexagon, perfect matchings on a honeycomb graph, and families of non-intersecting lattice paths in a hexagon are all in…