费曼恒等式:一个特例。II
Feynman Identity: a special case. II
摘要:
本文推广了第一部分关于费曼恒等式的一个特例的结果。在这种情况下,一条路的符号规则的数据编码的字和公式的数量不同的等价类的非周期路径的长度与正负号得到。此外,这些数字之间的联系被发现和广义维特公式的某些分次李代数的维数。证明了无穷乘积在恒等式中的收敛性。
英文摘要:
In this paper, the results of part I regarding a special case of Feynman identity are extended. The sign rule for a path in terms of data encoded by its word and formulas for the numbers of distinct equivalence classes of nonperiodic paths of given length with positive or negative sign are obtained for this case. Also, a connection is found between these numbers and the generalized Witt formula for the dimension of certain graded Lie algebras. Convergence of the infinite product in the identity is proved.
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