نتایج جستجو برای: fekete
تعداد نتایج: 509 فیلتر نتایج به سال:
In this research contribution, we have constructed a subclass of analytic bi-univalent functions using Horadam polynomials. Bounds for certain coefficients and Fekete- Szegö inequalities been estimated.
Cite this article as: Ned H Kalin, Andrew S Fox, Rothem Kovner, Marissa K Riedel, Eva M Fekete, Patrick H Roseboom, Do P M Tromp, Benjamin P Grabow, Miles E Olsen, Ethan K Brodsky, Daniel R. McFarlin, Andrew L Alexander, Marina E Emborg, Walter F Block, Julie L Fudge, Jonathan A Oler, Overexpressing corticotropin-releasing hormone (CRH) in the primate amygdala increases anxious temperament and ...
Abstract. In this paper we introduce and study a subclass of close-to-convex functions defined in the open unit disk. We establish the inclusion relationship, coefficient estimates and some sufficient conditions for a normalized function to be in our classes of functions. Furthermore, we discuss Fekete-Szegő problem for a more generalized class. The results presented here would provide extensio...
In this paper, we define new subclasses ${S}^{*}_{q}(alpha,Phi),$ ${M}_{q}(alpha,Phi)$ and ${L}_{q}(alpha,Phi)$ of analytic functions in the space of logistic sigmoid functions based on quasi--subordination and determine the initial coefficient estimates $|a_2|$ and $|a_3|$ and also determine the relevant connection to the classical Fekete--Szeg"o inequalities. Further, we discuss the improved ...
In the present paper, sharp upper bounds of |a3 − μa2| for the functions f(z) = z+ a2z + a3z + ... belonging to a new subclass of Sakaguchi type functions are obtained. Also, application of our results for subclass of functions defined by convolution with a normalized analytic function are given. In particular, Fekete-Szegö inequalities for certain classes of functions defined through fractiona...
, T For real numbers and such that 0 1 , we denote by the class of normalized analytic functions which satisfy Re f z z , T , where denotes the open unit disk. We find some relationships involving functions in the class . And we estimate the bounds of coefficients and solve Fekete-Szegö problem for functions in this class. Furthermore, we...
* Correspondence: [email protected]. kr Department of Applied Mathematics, Pukyong National University, Busan 608-737, South Korea Full list of author information is available at the end of the article Abstract In the present investigation, certain subclasses of close-to-convex functions are investigated. In particular, we obtain an estimate for the Fekete-Szegö functional for functions belonging t...
We study Lissajous curves in the 3-cube that generate algebraic cubature formulas on a special family of rank-1 Chebyshev lattices. These formulas are used to construct trivariate hyperinterpolation polynomials via a single 1-d Fast Chebyshev Transform (by the Chebfun package), and to compute discrete extremal sets of Fekete and Leja type for trivariate polynomial interpolation. Applications co...
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