论文信息 - A shellable poset that is not lexicographically shellable - 字舞流文

A shellable poset that is not lexicographically shellable

It is known that a lexicographically shellable poset is shellable, and it has been asked whether the two concepts are equivalent. We provide a counterexample, a shellable graded poset that is not lexicographically shellable.

Michelle L. Wachs | Andrew Vince

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