A1 Refereed original research article in a scientific journal

Solutions to some sign change problems on functions involving sums of divisors




AuthorsDing, Yuchen; Pan, Hao; Sun, Yu-Chen

PublisherSPRINGER

Publishing placeNEW YORK

Publication year2024

JournalPeriodica Mathematica Hungarica

Journal name in sourcePERIODICA MATHEMATICA HUNGARICA

Journal acronymPERIOD MATH HUNG

Number of pages8

ISSN0031-5303

eISSN1588-2829

DOIhttps://doi.org/10.1007/s10998-024-00620-2

Web address https://doi.org/10.1007/s10998-024-00620-2


Abstract
In this note, we solve some sign change problems on functions involving sums of divisors posed by Pongsriiam recently.


Funding information in the publication
The first author is supported by the National Natural Science Foundation of China (Grant No. 12201544), the Natural Science Foundation of Jiangsu Province in China (Grant No. BK20210784) and the China Postdoctoral Science Foundation (Grant No. 2022M710121). He is also supported by the foundations (Grant No. JSSCBS20211023).

The second author is supported by the National Natural Science Foundation of China (Grant No. 12071208). The third author was supported by an UTUGS funding and was working in the Academy of Finland project No. 333707. The first named author is supported by National Natural Science Foundation of China (Grant No. 12201544), Natural Science Foundation of Jiangsu Province in China (Grant No. BK20210784) and China Postdoctoral Science Foundation (Grant No. 2022M710121). He is also supported by the foundations (Grant No. JSSCBS20211023). The second named author is supported by the National Natural Science Foundation of China (Grant No. 12071208). The third named author was supported by UTUGS funding and was working in the Academy of Finland project No. 333707.


Last updated on 2025-27-01 at 19:06