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arXiv 1012.1798math.COgr-qc
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张量图的Bollobás-Riordan多项式的推广

Generalization of the Bollobás-Riordan polynomial for tensor graphs

Adrian Tanasa

摘要:

张量模型现在用于实现量子引力的基本理论。我们在这里定义一个多项式$\mathcal T$编码的补充拓扑信息。该多项式是Bollobás-Riordan多项式(用于描述矩阵图)的自然推广,并且不同于Gur \uau多项式(R. Gur \uau,“Topological Graph Polynomials in Colored Group域论“,Annales Henri Poincare { \bf 11},565-584(2010))定义用于特定类别的张量图,可着色的张量图。对可着色图和不可着色图定义了多项式$\mathcal T$,并证明了它满足收缩/删除关系.分析了一个非平凡的不可着色图的例子。

英文摘要:

Tensor models are used nowadays for implementing a fundamental theory of quantum gravity. We define here a polynomial $\mathcal T$ encoding the supplementary topological information. This polynomial is a natural generalization of the Bollobás-Riordan polynomial (used to characterize matrix graphs) and is different of the Gur\uau polynomial, (R. Gur\uau, "Topological Graph Polynomials in Colored Group Field Theory", Annales Henri Poincare {\bf 11}, 565-584 (2010)) defined for a particular class of tensor graphs, the colorable ones. The polynomial $\mathcal T$ is defined for both colorable and non-colorable graphs and it is proved to satisfy the contraction/deletion relation. A non-trivial example of a non-colorable graphs is analyzed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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