A1 Refereed original research article in a scientific journal
Inequalities for the generalized point pair function
Authors: Rainio Oona
Publisher: SPRINGER
Publication year: 2023
Journal: Lithuanian Mathematical Journal
Journal name in source: LITHUANIAN MATHEMATICAL JOURNAL
Journal acronym: LITH MATH J
Number of pages: 15
ISSN: 0363-1672
eISSN: 1573-8825
DOI: https://doi.org/10.1007/s10986-023-09603-1
Web address : https://doi.org/10.1007/s10986-023-09603-1
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/180690815
We study a new generalized version of the point pair function defined with a constant α > 0. We prove that this function is a quasi-metric for all values of α > 0 and compare it to several hyperbolic-type metrics, such as the j∗-metric, the triangular ratio metric, and the hyperbolic metric. Most of the inequalities presented here have the best possible constants in terms of α. Furthermore, we research the distortion of the generalized point pair function under conformal and quasiregular mappings.
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