Zobrazeno 1 - 10
of 313
pro vyhledávání: '"M.K. Aouf"'
Autor:
M.K. Aouf, Fatma Z. El-Emam
Publikováno v:
Journal of Mathematics, Vol 2022 (2022)
In this paper, we introduce a new derivative operator involving q-Al-Oboudi differential operator for meromorphic functions. By using this new operator, we define a new subclass of meromorphic functions and obtain the Fekete–Szegő inequalities.
Externí odkaz:
https://doaj.org/article/c135e2cb6c644560bd1f1a7a002efbd2
Publikováno v:
Journal of the Egyptian Mathematical Society, Vol 24, Iss 3, Pp 361-366 (2016)
The purpose of this paper is to introduce sufficient conditions for (Gaussian) hypergeometric functions to be in various subclasses of analytic functions. Also, we investigate several mapping properties involving these subclasses.
Externí odkaz:
https://doaj.org/article/a7dd488721324018814eeeadac5f185e
Publikováno v:
Journal of the Egyptian Mathematical Society, Vol 24, Iss 3, Pp 355-360 (2016)
In this paper we shall introduce and study some subordination results for the class of γ-spirallike univalent functions defined by convolution.
Externí odkaz:
https://doaj.org/article/64941c12bd41410383894891b76e40b4
Publikováno v:
Journal of the Egyptian Mathematical Society, Vol 23, Iss 3, Pp 476-481 (2015)
The purpose of this paper is to introduce necessary and sufficient condition of (Gaussian) hypergeometric functions to be in a subclass of uniformly starlike and uniformly convex functions. Operators related to hypergeometric functions are also consi
Externí odkaz:
https://doaj.org/article/c621f018599444efaa097fce4aaa3435
Publikováno v:
Journal of the Egyptian Mathematical Society, Vol 22, Iss 2, Pp 190-196 (2014)
In this paper, we obtain Fekete-Szegö inequalities for certain class of analytic p-valent functions f(z) for which 1+1b1pz(f∗g)′(z)+λz2(f∗g)″(z)(1-λ)(f∗g)(z)+λz(f∗g)′(z)-1≺φ(z)(b∈C∗=C⧹{0}). Sharp bounds for the Fekete-Szeg
Externí odkaz:
https://doaj.org/article/0a074a64c85e4659b6ad2cf26cb58d28
Publikováno v:
Journal of the Egyptian Mathematical Society, Vol 22, Iss 1, Pp 31-35 (2014)
In this paper, we study new generalized integral operators for the classes of p-valent functions associated with generalized multiplier transformations.
Externí odkaz:
https://doaj.org/article/9c1427e97cf944b39c045bc39f4c1ca5
Publikováno v:
Journal of the Egyptian Mathematical Society, Vol 21, Iss 3, Pp 197-200 (2013)
In this paper, we obtain Fekete–Szegö inequalities for a certain class of meromorphic functions f(z) for which -zf′(z)+αz2f″(z)(1-α)f(z)+αzf′(z)≺φ(z)(α∈C-(0,1]). Sharp bounds for the Fekete–Szegö functional a1-μa02 are obtained.
Externí odkaz:
https://doaj.org/article/671cfb90d86b4c16be3ee57ac954c7f7
Autor:
G. Murugusundaramoorthy, M.K. Aouf
Publikováno v:
International Journal of Analysis and Applications, Vol 2, Iss 1, Pp 1-18 (2013)
Making use a linear operator, which is defined here by means of the Hadamard product (or convolution), involving the Wright’s generalized hypergeometric function , we introduce two novel subclassesP p(q,s,α1;A,B,λ) andP+p(q,s,α1;A,B,λ) of merom
Externí odkaz:
https://doaj.org/article/14111abf39e24d48b20be1b32871b589
Autor:
T.M. Seoudy, M.K. Aouf
Publikováno v:
Journal of the Egyptian Mathematical Society, Vol 21, Iss 1, Pp 11-15 (2013)
In the present paper, we introduce several subclasses of analytic functions, which are defined by means of generalized integral operator and investigate various inclusion properties of these subclasses. Some interesting applications involving these a
Externí odkaz:
https://doaj.org/article/9e54270fd7994846a31ff58f3199e6b7
Autor:
M.K. Aouf, Fatma Z. El-Emam
Publikováno v:
Journal of Mathematics. 2022:1-10
In this paper, we introduce a new derivative operator involving q -Al-Oboudi differential operator for meromorphic functions. By using this new operator, we define a new subclass of meromorphic functions and obtain the Fekete–Szegő inequalities.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6470dabe0fef496f8a74629f1299d9f
https://doi.org/10.1155/2022/4731417
https://doi.org/10.1155/2022/4731417