Results 1 to 10 of about 217 (136)

A Class of Integral Operators Preserving Subordination and Superordination

open access: yesJournal of Inequalities and Applications, 2008
We give some subordination- and superordination-preserving properties of certain nonlinear integral operators defined on the space of normalized analytic functions in the open unit disk.
Cho NakEun, Kim InHwa
doaj   +4 more sources

Subordination and Superordination on Schwarzian Derivatives [PDF]

open access: yesJournal of Inequalities and Applications, 2009
Let the functions q1 be analytic and let q2 be analytic univalent in the unit disk. Using the methods of differential subordination and superordination, sufficient conditions involving the Schwarzian derivative of a normalized analytic function f are ...
N. Seenivasagan   +2 more
doaj   +4 more sources

Properties of Differential Subordination and Superordination for Multivalent Functions Associated with the Convolution Operators

open access: yesAxioms, 2023
Using convolution (or Hadamard product), we define the El-Ashwah and Drbuk linear operator, which is a multivalent function in the unit disk U=w ...
Cotirla Luminiţa-Ioana   +1 more
exaly   +3 more sources

Differential Subordination and Superordination Results Associated with Mittag–Leffler Function

open access: yesMathematics, 2021
In this paper, we derive a number of interesting results concerning subordination and superordination relations for certain analytic functions associated with an extension of the Mittag–Leffler function.
Adel Attiya   +2 more
exaly   +3 more sources

Third-order differential subordination and superordination involving a fractional operator

open access: yesOpen Mathematics, 2015
The third-order differential subordination and the corresponding differential superordination problems for a new linear operator convoluted the fractional integral operator with the Carlson-Shaffer operator, are investigated in this study.
Rabha W Ibrahim   +2 more
exaly   +2 more sources

Subordination and Superordination Results for a Class of Analytic Multivalent Functions [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2008
We derive subordination and superordination results for a family of normalized analytic functions in the open unit disk defined by integral operators. We apply this to obtain sandwich results and generalizations of some known results.
S. P. Goyal   +2 more
doaj   +3 more sources

Differential Subordination and Superordination for Srivastava-Attiya Operator [PDF]

open access: yesInternational Journal of Differential Equations, 2011
Due to the well-known Srivastava-Attiya operator, we investigate here some results relating the p-valent of the operator with differential subordination and subordination. Further, we obtain some interesting results on sandwich-type theorem for the same.
Maisarah Haji Mohd, Maslina Darus
doaj   +3 more sources

Differential subordination and superordination results for Cho–Kwon–Srivastava operator

open access: yesComputers and Mathematics With Applications, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
S Sivasubramanian
exaly   +3 more sources

Subordination and superordination of a certain integral operator on meromorphic functions

open access: yesComputers and Mathematics With Applications, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
M K Aouf
exaly   +2 more sources

Strong differential subordination and superordination of analytic functions

open access: yesJournal of Mathematical Analysis and Applications, 2012
Let \(A\) be the class of functions analytic in the unit disc \(\mathbb{U}= \{z\in\mathbb{C}:|z|< 1\}\). We say that a function \(f\in A\) is subordinate to \(g\in A\) if there exists a function \(w\in A\) such that \(|w(z)|< 1\) and \(f(z)= g(w(z))\) for \(z\in \mathbb{U}\). In this case we write \(f\prec g\) or \(f(z)\prec g(z)\).
Jeyaraman, M.P., Suresh, T.K.
exaly   +2 more sources

Home - About - Disclaimer - Privacy