Contour Integrations and Parity Results of Cyclotomic Euler $T$-Sums and Multiple $t$-Values

Fuente: arXiv
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Main Authors: Wang, Zhenlu, Xu, Ce
Format: Preprint
Published: 2025
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author Wang, Zhenlu
Xu, Ce
author_facet Wang, Zhenlu
Xu, Ce
contents We will employ the method of contour integration to investigate the parity results of non-embedded cyclotomic multiple $t$-values, which we refer to as cyclotomic Euler $T$-sums. We can provide explicit parity formulas for the linear and quadratic cases of cyclotomic Euler $T$-sums, as well as state a parity theorem for the general case. We also present illustrative examples and corollaries. From this, some parity results for classical cyclotomic multiple $t$-values can be derived. Furthermore, we present several general formulas for cyclotomic Euler $T$-sums with denominators involving arbitrary rational polynomials through residue computations. By evaluating these polynomials and computing residues, many other formulas analogous to cyclotomic Euler $T$-sums can be derived. In particular, we also obtain certain parity results for the cyclotomic versions of multiple $T$-values as defined by Kaneko and Tsumura. Finally, we propose some conjectures and questions regarding the parity of cyclotomic multiple $t$-values and cyclotomic multiple $T$-values.
format Preprint
id arxiv_https___arxiv_org_abs_2509_06706
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Contour Integrations and Parity Results of Cyclotomic Euler $T$-Sums and Multiple $t$-Values
Wang, Zhenlu
Xu, Ce
Number Theory
We will employ the method of contour integration to investigate the parity results of non-embedded cyclotomic multiple $t$-values, which we refer to as cyclotomic Euler $T$-sums. We can provide explicit parity formulas for the linear and quadratic cases of cyclotomic Euler $T$-sums, as well as state a parity theorem for the general case. We also present illustrative examples and corollaries. From this, some parity results for classical cyclotomic multiple $t$-values can be derived. Furthermore, we present several general formulas for cyclotomic Euler $T$-sums with denominators involving arbitrary rational polynomials through residue computations. By evaluating these polynomials and computing residues, many other formulas analogous to cyclotomic Euler $T$-sums can be derived. In particular, we also obtain certain parity results for the cyclotomic versions of multiple $T$-values as defined by Kaneko and Tsumura. Finally, we propose some conjectures and questions regarding the parity of cyclotomic multiple $t$-values and cyclotomic multiple $T$-values.
title Contour Integrations and Parity Results of Cyclotomic Euler $T$-Sums and Multiple $t$-Values
topic Number Theory
url https://arxiv.org/abs/2509.06706