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The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name. |
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STUDIA MATHEMATICA - Issue no. 3 / 2010 | |||||||
Article: |
A CONVEXITY PROPERTY FOR AN INTEGRAL OPERATOR Fm. Authors: GEORGIA IRINA OROS, GHEORGHE OROS. |
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Abstract: In this paper we define an integral operator denoted by Fm(z) using the Ruscheweyh derivative of order n applied to the functions fi(z) Є A, I = {1, 2, ..., m}, z Є U. We determine conditions on the functions Rnfi(z), where Rn is the Ruscheweyh operator (Definition 1.1), in order for Fm(z) to be convex. Key words and phrases. analytic function, univalent function, integral operator, convex function, starlike function, differential operator. |
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