Results 11 to 20 of about 1,545,063 (318)

A generalized conic domain and its applications to certain subclasses of multivalent functions associated with the basic (or q-) calculus

open access: yesAIMS Mathematics, 2021
In this paper, by using the concept of the basic (or $ q $-) calculus and a generalized conic domain, we define two subclasses of normalized multivalent functions which map the open unit disk: $ \mathbb{U} = \left\{z: z\in \mathbb{C}\qquad \text ...
H. M. Srivastava   +2 more
doaj   +1 more source

Coefficient bounds for certain subclasses of bi-prestarlike functions associated with the Chebyshev polynomials [PDF]

open access: yesMathematica Moravica, 2020
In this paper, we introduce and investigate a new subclass of bi-prestarlike functions defined in the open unit disk, associated with Chebyshev Polynomials.
Güney H.Ö.   +3 more
doaj   +1 more source

Subclasses of Uniformly Convex Functions with Negative Coefficients Based on Deniz–Özkan Differential Operator

open access: yesAxioms, 2022
We introduce in this paper a new family of uniformly convex functions related to the Deniz–Özkan differential operator. By using this family of functions with a negative coefficient, we obtain coefficient estimates, the radius of starlikeness, convexity,
Erhan Deniz   +2 more
doaj   +1 more source

Coefficient Bounds for Some Families of Bi-Univalent Functions with Missing Coefficients

open access: yesAxioms, 2023
A branch of complex analysis with a rich history is geometric function theory, which first appeared in the early 20th century. The function theory deals with a variety of analytical tools to study the geometric features of complex-valued functions.
Ebrahim Analouei Adegani   +3 more
doaj   +1 more source

A certain subclass of bi-univalent functions associated with Bell numbers and $q-$Srivastava Attiya operator

open access: yesAIMS Mathematics, 2020
In the present study, we introduced general a subclass of bi-univalent functions by using the Bell numbers and $q-$Srivastava Attiya operator. Also, we investigate coefficient estimates and famous Fekete-Szegö inequality for functions belonging to this ...
Erhan Deniz   +2 more
doaj   +1 more source

Explicit estimates for solutions of mixed elliptic problems [PDF]

open access: yes, 2013
We deal with the existence of quantitative estimates for solutions of mixed problems to an elliptic second order equation in divergence form with discontinuous coefficient. Our concern is to estimate the solutions with explicit constants, for domains in $
Consiglieri, Luisa
core   +3 more sources

Coefficient Estimates for a Subclass of Starlike Functions

open access: yesMathematics, 2020
In this note, we consider a subclass H3/2(p) of starlike functions f with f″(0)=p for a prescribed p∈[0,2]. Usually, in the study of univalent functions, estimates on the Taylor coefficients, Fekete–Szegö functional or Hankel determinats are given ...
Dorina Răducanu
doaj   +1 more source

A Note on Meromorphic Functions Associated With Beseel Function Defined by Hilbert Sapce Operator

open access: yesConcrete Operators, 2021
In this paper,we introduce and study a new subclass of meromorphic functions associated with a certain differential operator on Hilbert space. For this class, we obtain several properties like the coefficient inequality, growth and distortion theorem ...
Venkateswarlu B.   +3 more
doaj   +1 more source

Argument and Coefficient Estimates for Certain Analytic Functions

open access: yesMathematics, 2020
The aim of the present paper is to introduce a new class G α , δ of analytic functions in the open unit disk and to study some properties associated with strong starlikeness and close-to-convexity for the class G α , δ
Davood Alimohammadi   +3 more
doaj   +1 more source

Optimal estimates of the diffusion coefficient of a single Brownian trajectory [PDF]

open access: yes, 2012
Modern developments in microscopy and image processing are revolutionizing areas of physics, chemistry and biology as nanoscale objects can be tracked with unprecedented accuracy.
A. O. Golosov   +8 more
core   +5 more sources

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