About a generalized class of close-to-convex functions defined by q-difference operator

In this paper we generalize the class of close-to-convex functions by the q-difference operator, for functions with negative coefficients and we study some properties of this generalized class. An analogue of the Pólya-Schoenberg conjecture is proved.

Bibliographic Details
Main Authors: Olga Engel, Cosmina Naicu
Format: Article
Language:English
Published: Editura Universităţii "Petru Maior" 2016-06-01
Series:Scientific Bulletin of the ''Petru Maior" University of Tîrgu Mureș
Subjects:
Online Access:http://scientificbulletin.upm.ro/papers/2016-1/06%20About%20a%20generalized%20class%20EngelOlga.pdf
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author Olga Engel
Cosmina Naicu
author_facet Olga Engel
Cosmina Naicu
author_sort Olga Engel
collection DOAJ
description In this paper we generalize the class of close-to-convex functions by the q-difference operator, for functions with negative coefficients and we study some properties of this generalized class. An analogue of the Pólya-Schoenberg conjecture is proved.
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spelling doaj.art-718c1fa93e574f4eadd93080d46161112022-12-22T03:56:59ZengEditura Universităţii "Petru Maior"Scientific Bulletin of the ''Petru Maior" University of Tîrgu Mureș1841-92672285-09452016-06-0113 (XXX)13034About a generalized class of close-to-convex functions defined by q-difference operatorOlga Engel0Cosmina Naicu1Babes-Bolyai University, Cluj-Napoca, RomaniaBabes-Bolyai University, Cluj-Napoca, RomaniaIn this paper we generalize the class of close-to-convex functions by the q-difference operator, for functions with negative coefficients and we study some properties of this generalized class. An analogue of the Pólya-Schoenberg conjecture is proved.http://scientificbulletin.upm.ro/papers/2016-1/06%20About%20a%20generalized%20class%20EngelOlga.pdfclose-to-convex functionsq-derivativePólya-Schoenberg conjecture
spellingShingle Olga Engel
Cosmina Naicu
About a generalized class of close-to-convex functions defined by q-difference operator
Scientific Bulletin of the ''Petru Maior" University of Tîrgu Mureș
close-to-convex functions
q-derivative
Pólya-Schoenberg conjecture
title About a generalized class of close-to-convex functions defined by q-difference operator
title_full About a generalized class of close-to-convex functions defined by q-difference operator
title_fullStr About a generalized class of close-to-convex functions defined by q-difference operator
title_full_unstemmed About a generalized class of close-to-convex functions defined by q-difference operator
title_short About a generalized class of close-to-convex functions defined by q-difference operator
title_sort about a generalized class of close to convex functions defined by q difference operator
topic close-to-convex functions
q-derivative
Pólya-Schoenberg conjecture
url http://scientificbulletin.upm.ro/papers/2016-1/06%20About%20a%20generalized%20class%20EngelOlga.pdf
work_keys_str_mv AT olgaengel aboutageneralizedclassofclosetoconvexfunctionsdefinedbyqdifferenceoperator
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