Feynman Identity: a special case. II

Details Feynman Identity: a special case. II Feynman Identity: a special case. II

2003-05-21

arxiv.org/abs/math-ph/0305042v1

Physics

Mathematical Physics

25 pages, 7 figures

Scientific paper

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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