Incomparability graphs of (3 + 1)-free posets are s-positive

Discrete Mathematics

Volumn 157, Issue 1-3, 1996, Pages 193-197

  Gasharov, Vesselin ^a  

^a UNIVERSITY OF MICHIGAN   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0007113804     PISSN: 0012365X     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0012-365X(96)83014-7     Document Type: Article

References (7)

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2. M. Haiman, Hecke algebra characters and immanant conjectures, J. Amer. Math. Soc. 6 (1993) 569-595.
3. I.G. Macdonald, Symmetric Functions and Hall Polynomials (Oxford University Press, Oxford, 1979).
4. B.E. Sagan, The Symmetric Group (Wadsworth & Brooks/Cole, Pacific Grove, CA, 1991).
5. R. Stanley, A symmetric function generalization of the chromatic polynomial of a graph, Advances in Math. 111 (1995).
6. R. Stanley and J. Stembridge, On immanants of Jacobi-Trudi matrices and permutations with restricted position, J. Combin. theory (A) 62 (1993) 261-279.
7. J. Stembridge, Immanants of totally positive matrices are nonnegative, Bull. London Math. Soc. 23 (1991) 422-428.