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Article

Partial Sums of the Hurwitz and Allied Functions and Their Special Values

by
Nianliang Wang
1,*,†,
Ruiyang Li
2,† and
Takako Kuzumaki
3,*
1
School of Applied Mathematics and Computer Science, Institute of Applied Mathematics, Shangluo University, Shangluo 726000, China
2
School of Applied Mathematics and Computers, Xi’an Technical University, Xi’an 726000, China
3
Faculty of Engineering, Department of Mathematics, Gifu University, Gifu 501-1193, Japan
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Mathematics 2025, 13(9), 1469; https://doi.org/10.3390/math13091469 (registering DOI)
Submission received: 26 February 2025 / Revised: 8 April 2025 / Accepted: 24 April 2025 / Published: 29 April 2025
(This article belongs to the Special Issue Analytic Methods in Number Theory and Allied Fields)

Abstract

We supplement the formulas for partial sums of the Hurwitz zeta-function and its derivatives, producing more integral representations and generic definitions of important constants. Then, these are used, coupled with the functional equation for the completed zeta-function to clarify the results of Choudhury, giving rise to closed expressions for the Riemann zeta-function and its derivatives.
Keywords: Riemann zeta-function; Hurwitz zeta-function; integral representation for partial sums; functional equation; special values Riemann zeta-function; Hurwitz zeta-function; integral representation for partial sums; functional equation; special values

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MDPI and ACS Style

Wang, N.; Li, R.; Kuzumaki, T. Partial Sums of the Hurwitz and Allied Functions and Their Special Values. Mathematics 2025, 13, 1469. https://doi.org/10.3390/math13091469

AMA Style

Wang N, Li R, Kuzumaki T. Partial Sums of the Hurwitz and Allied Functions and Their Special Values. Mathematics. 2025; 13(9):1469. https://doi.org/10.3390/math13091469

Chicago/Turabian Style

Wang, Nianliang, Ruiyang Li, and Takako Kuzumaki. 2025. "Partial Sums of the Hurwitz and Allied Functions and Their Special Values" Mathematics 13, no. 9: 1469. https://doi.org/10.3390/math13091469

APA Style

Wang, N., Li, R., & Kuzumaki, T. (2025). Partial Sums of the Hurwitz and Allied Functions and Their Special Values. Mathematics, 13(9), 1469. https://doi.org/10.3390/math13091469

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