Zobrazeno 1 - 10
of 95
pro vyhledávání: '"halit Orhan"'
Publikováno v:
AIMS Mathematics, Vol 9, Iss 11, Pp 30100-30121 (2024)
Communication networks are exposed to internal or external risks that can affect all or part of the system. The most important components that form the infrastructure of these systems are routers, which act as nodes. In the field of graph theory, the
Externí odkaz:
https://doaj.org/article/86042279e5eb40e9842d1967a57b4c33
Publikováno v:
Sahand Communications in Mathematical Analysis, Vol 20, Iss 2, Pp 65-83 (2023)
In this paper, we obtain upper bounds of the initial Taylor-Maclaurin coefficients $\left\vert a_{2}\right\vert ,$ $\left\vert a_{3}\right\vert $ and $\left\vert a_{4}\right\vert $ and of the Fekete-Szegö functional $\left\vert a_{3}-\eta a_{2}^{2}\
Externí odkaz:
https://doaj.org/article/e41b2410985d4530b1fc6133f74f8710
Publikováno v:
AIMS Mathematics, Vol 5, Iss 5, Pp 4412-4423 (2020)
In the present investigation, we define a subclass of bi-univalent functions related to shell-like curves connected with Fibonacci numbers to find the estimates of second, third Taylor-Maclaurin coefficients and Fekete-Szegö inequalities. Further, c
Externí odkaz:
https://doaj.org/article/0e46e9c6bc1042899231fd172c486f5b
Publikováno v:
AIMS Mathematics, Vol 5, Iss 3, Pp 1745-1756 (2020)
In this paper, we introduce and study a new subclass of analytic functions defined by $\mathcal{D}^{k}\mathcal{L} _{a}^{\delta }f(z)$ differential operator in the unit disk. For this subclass, the Fekete-Szegö type coefficient inequalities are deriv
Externí odkaz:
https://doaj.org/article/a33ea8b7c643447eb9952da9e4e94721
Publikováno v:
Boletim da Sociedade Paranaense de Matemática, Vol 40 (2022)
In this paper, we obtain initial coefficients |a2| and |a3| for a certain subclass by means of Chebyshev polynomials expansions of analytic functions in D. Also, we solve Fekete-Szegö problem for functions in this subclass.
Externí odkaz:
https://doaj.org/article/dc12f6616075441f99a1cfe9225a401d
Publikováno v:
Mathematics, Vol 11, Iss 5, p 1147 (2023)
The main goal of this investigation is to obtain sharp upper bounds for Fekete-Szegö functional and the third Hankel determinant for a certain subclass SL∗u,v,α of holomorphic functions defined by the Carlson-Shaffer operator in the unit disk. Fi
Externí odkaz:
https://doaj.org/article/c5741b47a21047e7971e81d193431771
Publikováno v:
Axioms, Vol 12, Iss 2, p 172 (2023)
We introduce a comprehensive subfamily of analytic and bi-univalent functions in this study using Horadam polynomials and the q-analog of the Noor integral operator. We establish upper bounds for the absolute values of the second and the third coeffi
Externí odkaz:
https://doaj.org/article/96bbc36908874485a240c3c94680e746
Autor:
Halit Orhan, Luminiţa-Ioana Cotîrlă
Publikováno v:
Axioms, Vol 11, Iss 10, p 560 (2022)
In our present investigation, we introduce and study some new subclasses of analytic functions associated with Ruscheweyh differential operator Dr. We obtain a Fekete–Szegö inequality for certain normalized analytic function defined on the open un
Externí odkaz:
https://doaj.org/article/493ce90c637541c18adca262ae355f56
Publikováno v:
AIMS Mathematics, Vol 6, Iss 3, Pp 2722-2723 (2021)
The purpose of this note is to give some mistyping corrections for our published article in [1].
Externí odkaz:
https://doaj.org/article/e8c081c1e7cf4a3f9a79a82c83877d6e
Publikováno v:
Abstract and Applied Analysis, Vol 2013 (2013)
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 i
Externí odkaz:
https://doaj.org/article/2a20c09eb14243039be7865d790b7517