<p>Apéry-type (inverse) binomial series have appeared prominently in the calculations of Feynman integrals in recent years. In their previous work, the authors showed that a few large classes of the non-alternating Apéry-type (inverse) central binomial series can be evaluated using colored multiple zeta values of level four (i.e., special values of multiple polylogarithms at the fourth roots of unity) by expressing them in terms of iterated integrals. In this sequel, the authors will prove that for several classes of the alternating versions they need to raise the level to eight. Their main idea is to adopt hyperbolic trigonometric 1-forms to replace the ordinary trigonometric ones used in the non-alternating setting.</p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Alternating Apéry-Type Series and Colored Multiple Zeta Values of Level Eight

  • Ce Xu,
  • Jianqiang Zhao

摘要

Apéry-type (inverse) binomial series have appeared prominently in the calculations of Feynman integrals in recent years. In their previous work, the authors showed that a few large classes of the non-alternating Apéry-type (inverse) central binomial series can be evaluated using colored multiple zeta values of level four (i.e., special values of multiple polylogarithms at the fourth roots of unity) by expressing them in terms of iterated integrals. In this sequel, the authors will prove that for several classes of the alternating versions they need to raise the level to eight. Their main idea is to adopt hyperbolic trigonometric 1-forms to replace the ordinary trigonometric ones used in the non-alternating setting.