A new form of the reciprocal relation for generalized Dedekind sums

UDC 517.5 We mainly generalize a reciprocal relation in the inverse form, namely,  $$S(2\overline{h}, m, n, k)+S(2\overline{k}, m, n, h)$$ for the generalized Dedekind sums by using the Fourier expansions of the Bernoulli polynomials and  analytic methods. Further, the reciprocal relation for genera...

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Datum:2026
Hauptverfasser: Luo, Shiyuan, Xu, Zhefeng
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Sprache:Englisch
Veröffentlicht: Institute of Mathematics, NAS of Ukraine 2026
Online Zugang:https://umj.imath.kiev.ua/index.php/umj/article/view/8522
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Назва журналу:Ukrains’kyi Matematychnyi Zhurnal
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Ukrains’kyi Matematychnyi Zhurnal
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author Luo, Shiyuan
Xu, Zhefeng
Luo, Shiyuan
Xu, Zhefeng
author_facet Luo, Shiyuan
Xu, Zhefeng
Luo, Shiyuan
Xu, Zhefeng
author_sort Luo, Shiyuan
baseUrl_str https://umj.imath.kiev.ua/index.php/umj/oai
collection OJS
datestamp_date 2026-03-21T13:39:54Z
description UDC 517.5 We mainly generalize a reciprocal relation in the inverse form, namely,  $$S(2\overline{h}, m, n, k)+S(2\overline{k}, m, n, h)$$ for the generalized Dedekind sums by using the Fourier expansions of the Bernoulli polynomials and  analytic methods. Further, the reciprocal relation for generalized Hardy sums $s_5(h,m,k)$ is also derived. Moreover, we unexpectedly obtain a computational formula for one kind of the mean value of Dirichlet $L$-functions with the weight given by even character sums.
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spelling umjimathkievua-article-85222026-03-21T13:39:54Z A new form of the reciprocal relation for generalized Dedekind sums A new form of the reciprocal relation for generalized Dedekind sums Luo, Shiyuan Xu, Zhefeng Luo, Shiyuan Xu, Zhefeng generalized Dedekind sums, generalized Hardy sums, Bernoulli polynomial, Fourier expansion, reciprocity formula, Dirichlet L-functions. UDC 517.5 We mainly generalize a reciprocal relation in the inverse form, namely,  $$S(2\overline{h}, m, n, k)+S(2\overline{k}, m, n, h)$$ for the generalized Dedekind sums by using the Fourier expansions of the Bernoulli polynomials and  analytic methods. Further, the reciprocal relation for generalized Hardy sums $s_5(h,m,k)$ is also derived. Moreover, we unexpectedly obtain a computational formula for one kind of the mean value of Dirichlet $L$-functions with the weight given by even character sums. УДК 517.5 Нова форма оберненого співвідношення для узагальнених сум Дедекінда Основну увагу приділено узагальненню оберненого співвідношення у вигляді \[S(2\overline{h}, m, n, k) + S(2\overline{k}, m, n, h)\] для узагальнених сум Дедекінда, що здійснюється з використанням ряду Фур’є для многочленів Бернуллі та аналітичних методів. Далі, виведено обернене співвідношення для узагальнених сум Гарді $s_5(h, m, k)$. Крім того, несподівано отримано обчислювальну формулу для одного з типів середнього значення $L$-функцій Діріхле з вагою, заданою сумами парних символів. Institute of Mathematics, NAS of Ukraine 2026-03-21 Article Article https://umj.imath.kiev.ua/index.php/umj/article/view/8522 10.3842/umzh.v77i6.8522 Ukrains’kyi Matematychnyi Zhurnal; Vol. 77 No. 6 (2025); 451–452 Український математичний журнал; Том 77 № 6 (2025); 451–452 1027-3190 en https://umj.imath.kiev.ua/index.php/umj/article/view/8522/10540 Copyright (c) 2025 Shiyuan Luo, Zhefeng Xu
spellingShingle Luo, Shiyuan
Xu, Zhefeng
Luo, Shiyuan
Xu, Zhefeng
A new form of the reciprocal relation for generalized Dedekind sums
title A new form of the reciprocal relation for generalized Dedekind sums
title_alt A new form of the reciprocal relation for generalized Dedekind sums
title_full A new form of the reciprocal relation for generalized Dedekind sums
title_fullStr A new form of the reciprocal relation for generalized Dedekind sums
title_full_unstemmed A new form of the reciprocal relation for generalized Dedekind sums
title_short A new form of the reciprocal relation for generalized Dedekind sums
title_sort new form of the reciprocal relation for generalized dedekind sums
topic_facet generalized Dedekind sums
generalized Hardy sums
Bernoulli polynomial
Fourier expansion
reciprocity formula
Dirichlet L-functions.
url https://umj.imath.kiev.ua/index.php/umj/article/view/8522
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