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arXiv 0704.2522math-phmath.MP
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类Feynman图代数的三参数Hopf变形

A Three Parameter Hopf Deformation of the Algebra of Feynman-like Diagrams

Gérard Henry Edmond Duchamp, Pawel Blasiak, Andrzej Horzela, Karol A. Penson, Allan I. Solomon

摘要:

我们构造了一个三参数变形的Hopf代数$\LDIAG$。这是出现在量子场论的简化版本中的{ \em乘积公式}的类费曼图展开中的代数。这个新的代数是一个真正的Hopf变形,它减少到$\LDIAG$的一些参数值和代数的矩阵拟对称函数($\MQS$)的其他人,因此涉及$\LDIAG$到其他的当代物理的Hopf代数。此外,还存在一个保积的线性映射,从我们的代数到Euler-Zagier和代数。

英文摘要:

We construct a three-parameter deformation of the Hopf algebra $\LDIAG$. This is the algebra that appears in an expansion in terms of Feynman-like diagrams of the {\em product formula} in a simplified version of Quantum Field Theory. This new algebra is a true Hopf deformation which reduces to $\LDIAG$ for some parameter values and to the algebra of Matrix Quasi-Symmetric Functions ($\MQS$) for others, and thus relates $\LDIAG$ to other Hopf algebras of contemporary physics. Moreover, there is an onto linear mapping preserving products from our algebra to the algebra of Euler-Zagier sums.

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