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math.CO2013
Structural Properties of the Cambrian Semilattices -- Consequences of Semidistributivity
Henri Mühle
The -Cambrian semilattices defined by Reading and Speyer are a family of meet-semilattices associated with a Coxeter group and a Coxeter element , an…
math.CO2013★ 1 cited
Proper Mergings of Stars and Chains are Counted by Sums of Antidiagonals in Certain Convolution Arrays -- The Details
Henri Mühle
A proper merging of two disjoint quasi-ordered sets and is a quasi-order on the union of and such that the restriction to or yields the original quasi-order…