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Article overview
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Replacing Pfaffians and applications | Weigen Yan
; Yeong-Nan Yeh
; | Date: |
12 Nov 2005 | Subject: | Combinatorics | Abstract: | We present some Pfaffian identities, which are completely different from the Pl"ucker relations. As consequences we obtain a quadratic identity for the number of perfect matchings of plane graphs, which has a simpler form than the formula by Yan et al (Graphical condensation of plane graphs: a combinatorial approach, Theoret. Comput. Sci., to appear), and we also obtain some new determinant identities. | Source: | arXiv, math/0511315 | Services: | Forum | Review | PDF | Favorites |
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