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arXiv math-ph/0201011math-phcs.SChep-phmath.MP
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超越函数的符号展开

Symbolic Expansion of Transcendental Functions

Stefan Weinzierl

摘要:

在量子场论的费曼积分计算中,经常会遇到高阶超越函数。它们在小参数下的展开是一个不平凡的任务。我们报告的计算机程序,它允许系统的某些类的功能扩展。该算法是基于套和的Hopf代数。该程序是用C++编写的,并使用GiNaC库。

英文摘要:

Higher transcendental function occur frequently in the calculation of Feynman integrals in quantum field theory. Their expansion in a small parameter is a non-trivial task. We report on a computer program which allows the systematic expansion of certain classes of functions. The algorithms are based on the Hopf algebra of nested sums. The program is written in C++ and uses the GiNaC library.

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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