A Polynomial Invariant and Duality for Triangulations
A Polynomial Invariant and Duality for Triangulations
复制标题
三角剖分的多项式不变量和对偶性
DOI:
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发表时间:
2010
影响因子:
0.7
通讯作者:
David Renardy
中科院分区:
文献类型:
--
作者:
Vyacheslav Krushkal;David Renardy
The Tutte polynomial is a classical invariant, important in combinatorics and statistical mechanics. An essential feature of the Tutte polynomial is the duality for planar graphs G, $T_G(X,Y); =; {T}_{G^*}(Y,X)$ where $G^*$ denotes the dual graph. We examine this property from the perspective of manifold topology, formulating polynomial invariants for higher-dimensional simplicial complexes. Polynomial duality for triangulations of a sphere follows as a consequence of Alexander duality.
The main goal of this paper is to introduce and begin the study of a more general 4-variable polynomial for triangulations and handle decompositions of orientable manifolds. Polynomial duality in this case is a consequence of Poincare duality on manifolds. In dimension 2 these invariants specialize to the well-known polynomial invariants of ribbon graphs defined by B. Bollobas and O. Riordan. Examples and specific evaluations of the polynomials are discussed.
影响因子:
2
作者:
Fendley P
通讯作者:
Fendley P