A shellable poset that is not lexicographically shellable (Q1091408)
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scientific article; zbMATH DE number 4010575
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A shellable poset that is not lexicographically shellable |
scientific article; zbMATH DE number 4010575 |
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A shellable poset that is not lexicographically shellable (English)
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1985
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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.
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lexicographically shellable poset
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counterexample
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shellable graded poset
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