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The paper contains new results in the field of Geometric Function Theory of one variable functions, specially connected with the concepts of differential subordinations and superordinations, and that could be used for further investigation in this area. We defined a new subclasses of analytic multivalent functions in the open unit disk D with the aid of the generalized well-known Srivastava-Attiya operator obtained by a convolution product with the general Hurwitz-Lerch Zeta function. For the functions belonging to these subclasses we obtain sharp subordination and superordination results, that generalizes some previous well-known subordination properties obtained by different authors. The main results are followed by some particular cases obtained for special choices of the parameters, some of them being connected with the Janowski type functions. The technique used in the proofs is based on the general theory of differential subordinations and superordination initiated and developed by S.S. Miller and P. T. Mocanu. We emphasize that these results are sharp in the sense that there are the best possible under the given assumptions of our theorems and corollaries, that is the dominants cannot be improved. These new results generalizes some previous well-known subordination properties obtained by different authors. [ABSTRACT FROM AUTHOR]

In the paper, we introduce subclasses of meromorphic functions by using principle of subordination and find necessary and sufficient condition for coefficients of functions F to belonge to these classes. [ABSTRACT FROM AUTHOR]

In the present paper, we introduce a general subclass of bi-univalent functions of complex order associated with q--Sălăgeăn operator and using Chebyshev polynomials. We obtain coefficient bounds for functions in this class. [ABSTRACT FROM AUTHOR]

In this paper, we obtain initial coefficient bounds for functions belong to a subclass of bi-univalent functions by using the Salagean differential operator and Chebyshev polynomials and also we find Fekete-Szego inequalities for functions in this class. [ABSTRACT FROM AUTHOR]

In the present paper, we introduce the class S*λ,b (q,ϕ) of univalent function f (z) for which ... Sharp bounds for the Fekete-Szegö functional |a3 - μa²2| are obtained. [ABSTRACT FROM AUTHOR]

In the present paper using the principal of subordination we obtain sharp bounds for a class of non-Bazilevič functions with complex order defined by convolution. [ABSTRACT FROM AUTHOR]

In this paper using the principal of subordination we obtain sharp bounds for some classes of p-valent functions defined by convolution. [ABSTRACT FROM AUTHOR]

Making use of the operator L q , ν associated with functions of the form f ( z ) = 1 z + ∑ k = 1 ∞ a k z k − 1 , which are analytic in the punctured unit disc U * : = U ∖ { 0 } , we introduce two subclasses of meromorphic functions and investigate convolution properties and coefficient estimates for these subclasses. [ABSTRACT FROM AUTHOR]

In this paper, we obtain Fekete-Szegö functional ∣ap+2 - μa2p+1∣ for functions of the class Mm,λb,p,q(g, φ). Sharp bounds for the Fekete-Szegö functional ∣ap+2 - μa2p+1∣ are obtained. [ABSTRACT FROM AUTHOR]

In this paper, we defined two classes S*p(n, λ, A, B) and Kp(n, λ, A, B) of meromorphic p-valent functions associated with a new linear operator. We obtained convolution properties for functions in these classes. [ABSTRACT FROM AUTHOR]

In this paper, we drive several interesting subordination results of a certain classes of analytic functions defined by Dziok-Srivastava operator. [ABSTRACT FROM AUTHOR]

In this paper, we drive several interesting subordination results of certain classes of analytic functions defined by convolution with complex order. [ABSTRACT FROM AUTHOR]