arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0811.2514hep-thmath-phmath.AGmath.MP
收藏

代数几何费曼规则

Algebro-geometric Feynman rules

Paolo Aluffi, Matilde Marcolli

摘要:

给出了构造代数几何Feynman规则的一般过程,即通过仿射图超曲面的补类,通过浸入锥簇的Grothendieck环分解的Feynman图的Connes-Kreimer Hopf代数的特征.特别是,这映射到通常的格罗滕迪克环的品种,定义动机费曼规则。我们还构造了一个代数几何费曼规则的多项式环,它不通过通常的Grothendieck环的因素,并定义在奇异品种的特征类的值。这个不变量恢复,作为一个特殊的值,投影图超曲面补的欧拉特征。这个不变量的主要结果是一个公式的特征类加入两个投射品种。我们讨论了BPHZ重整化过程中的代数几何背景下,一些motivic zeta函数所产生的配分函数与motivic费曼规则。

英文摘要:

We give a general procedure to construct algebro-geometric Feynman rules, that is, characters of the Connes-Kreimer Hopf algebra of Feynman graphs that factor through a Grothendieck ring of immersed conical varieties, via the class of the complement of the affine graph hypersurface. In particular, this maps to the usual Grothendieck ring of varieties, defining motivic Feynman rules. We also construct an algebro-geometric Feynman rule with values in a polynomial ring, which does not factor through the usual Grothendieck ring, and which is defined in terms of characteristic classes of singular varieties. This invariant recovers, as a special value, the Euler characteristic of the projective graph hypersurface complement. The main result underlying the construction of this invariant is a formula for the characteristic classes of the join of two projective varieties. We discuss the BPHZ renormalization procedure in this algebro-geometric context and some motivic zeta functions arising from the partition functions associated to motivic Feynman rules.

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。

↑