English

Logarithmically complete monotonicity of reciprocal arctan function

Classical Analysis and ODEs 2021-12-21 v1

Abstract

We prove the conjecture stated in F. Qi and R. Agarwal, \textit{On complete monotonicity for several classes of functions related to ratios of gamma functions}, J. Inequal. Appl. (2019), 1-42, that the function 1/arctan1/\arctan is logarithmically completely monotonic on (0,)(0,\infty), but not a Stieltjes transform.

Keywords

Cite

@article{arxiv.2112.09960,
  title  = {Logarithmically complete monotonicity of reciprocal arctan function},
  author = {Vladimir Jovanović and Milanka Treml},
  journal= {arXiv preprint arXiv:2112.09960},
  year   = {2021}
}
R2 v1 2026-06-24T08:23:08.976Z