Báo cáo toán học: "Quantized dual graded graphs" docx

... relation DU + U D = rI. Thus quantized dual graded graphs specialize to usual dual g r aded graphs at q = 1, and t o signed differential posets (or their dual graded graph equivalent) at q = −1. The ... of differential posets, which includes quantized dual graded graphs as a special case. 2 Quantized dual graded graphs Let Γ = (V, E, m, h) be a graded graph with edge weights...

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... labeled graphs in C where equivalence is given by some action from Γ. Our perspective is essentially dual. We take a particular labeled graph chosen so that it generates a large set of equivalents.

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Ngày tải lên: 07/08/2014, 06:20

... of sextet graphs satisfies c(S) ≤ 0.75, and here too an improvement may be possible. Many individual sextet graphs satisfy c(S(p)) < 0.75, and the family provides some of the current-best examples. ... Conference) Annals of the New York Academy of Sciences 555 (1989) 56–62. 8. N. L. Biggs, Girth and residual finiteness. Combinatorica 8 (1988) 307–312. 9. N. L. Biggs and A. G. Boshier, Note o...

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