Notes on three conjectures involving the digamma and generalized digamma functions

Abstract In the paper, we solve one conjecture on an inequality involving digamma function, an open problem, and a conjecture on monotonicity of functions involving generalized digamma function. We also prove a new inequality for digamma function.

Bibliographic Details
Main Author: Ladislav Matejíčka
Format: Article
Language:English
Published: SpringerOpen 2018-12-01
Series:Journal of Inequalities and Applications
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13660-018-1936-z
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author Ladislav Matejíčka
author_facet Ladislav Matejíčka
author_sort Ladislav Matejíčka
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description Abstract In the paper, we solve one conjecture on an inequality involving digamma function, an open problem, and a conjecture on monotonicity of functions involving generalized digamma function. We also prove a new inequality for digamma function.
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spelling doaj.art-d4e73a69646248b39b425c7b193f0c0e2022-12-21T19:38:04ZengSpringerOpenJournal of Inequalities and Applications1029-242X2018-12-012018111210.1186/s13660-018-1936-zNotes on three conjectures involving the digamma and generalized digamma functionsLadislav Matejíčka0Faculty of Industrial Technologies in Púchov, Trenčín University of Alexander Dubček in TrenčínAbstract In the paper, we solve one conjecture on an inequality involving digamma function, an open problem, and a conjecture on monotonicity of functions involving generalized digamma function. We also prove a new inequality for digamma function.http://link.springer.com/article/10.1186/s13660-018-1936-zDigamma function( p , k ) $(p, k)$ -digamma functionComplete monotonicityMonotonicityInequalities
spellingShingle Ladislav Matejíčka
Notes on three conjectures involving the digamma and generalized digamma functions
Journal of Inequalities and Applications
Digamma function
( p , k ) $(p, k)$ -digamma function
Complete monotonicity
Monotonicity
Inequalities
title Notes on three conjectures involving the digamma and generalized digamma functions
title_full Notes on three conjectures involving the digamma and generalized digamma functions
title_fullStr Notes on three conjectures involving the digamma and generalized digamma functions
title_full_unstemmed Notes on three conjectures involving the digamma and generalized digamma functions
title_short Notes on three conjectures involving the digamma and generalized digamma functions
title_sort notes on three conjectures involving the digamma and generalized digamma functions
topic Digamma function
( p , k ) $(p, k)$ -digamma function
Complete monotonicity
Monotonicity
Inequalities
url http://link.springer.com/article/10.1186/s13660-018-1936-z
work_keys_str_mv AT ladislavmatejicka notesonthreeconjecturesinvolvingthedigammaandgeneralizeddigammafunctions