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On univalent functions with negative coefficients by using generalized Sâlâgean operator
Author(s) -
Rahman Juma,
S. R. Kulkarni
Publication year - 2007
Publication title -
filomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 34
eISSN - 2406-0933
pISSN - 0354-5180
DOI - 10.2298/fil0702173j
Subject(s) - mathematics , distortion (music) , operator (biology) , hadamard product , subclass , closure (psychology) , product (mathematics) , hadamard transform , univalent function , pure mathematics , mathematical analysis , combinatorics , analytic function , geometry , cmos , repressor , electronic engineering , amplifier , chemistry , antibody , engineering , biology , biochemistry , transcription factor , market economy , immunology , economics , gene
In this paper we have introduced a subclass AR(n, ξ, α, β, λ) of univalent functions with negative coefficients defined by Salagean operator Dⁿ. We have obtained sharp results for coefficient estimates, distortion and closure bounds, Hadamard product and other results. .

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