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Coefficient Estimates and Other Properties for a Class of Spirallike Functions Associated with a Differential Operator
Author(s) -
Halit Orhan,
Dorina Răducanu,
Murat Çağlar,
Mustafa Bayram
Publication year - 2013
Publication title -
abstract and applied analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.228
H-Index - 56
eISSN - 1687-0409
pISSN - 1085-3375
DOI - 10.1155/2013/415319
Subject(s) - mathematics , class (philosophy) , operator (biology) , differential operator , analytic function , differential (mechanical device) , object (grammar) , function (biology) , mathematical analysis , pure mathematics , biochemistry , chemistry , linguistics , philosophy , repressor , artificial intelligence , evolutionary biology , biology , computer science , transcription factor , engineering , gene , aerospace engineering
For , , , , and , a new class of analytic functions defined by means of the differential operator is introduced. Our main object is to provide sharp upper bounds for Fekete-Szegö problem in . We also find sufficient conditions for a function to be in this class. Some interestingconsequences of our results are pointed out

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