The Comparability Graph of a Modular Lattice


of rank is d-connected if there exists a closed interval of rank 3 of L with , where is the Möbius function of L.

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Received: January 18, 1996

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Hibi, T. The Comparability Graph of a Modular Lattice. Combinatorica 18, 541–548 (1998).

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  • AMS Subject Classification (1991) Classes:  06C05, 13H10