Möbius Functions of Lattices
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Andreas Blass; Bruce E. Sagan
📂
Article
📅
1997
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Elsevier Science
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English
⚖ 412 KB
We introduce the concept of a bounded below set in a lattice. This can be used to give a generalization of Rota's broken circuit theorem to any finite lattice. We then show how this result can be used to compute and combinatorially explain the Mo bius function in various examples including non-cross