Results 21 to 30 of about 8,297,474 (354)

Notes on Meromorphic Functions with Positive Coefficients Involving Polylogarithm Function

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2020
In this paper, we introduce and study a new subclass of meromorphic functions with positive coefficients involving the polylogarithm function and obtain coefficient estimates, growth and distortion theorem, radius of convexity, integral transforms ...
G. Swapna   +2 more
doaj   +1 more source

Development of Novel Subclasses for Bi-Univalent Functions

open access: yesASM Science Journal, 2021
This manuscript presents the development of new subclasses for bi-univalent functions and the subclasses are closely related to Chebyshev polynomials having Al-Oboudi differential operator.
MUNIRAH ROSSDY   +2 more
doaj   +1 more source

Initial Coefficients Upper Bounds for Certain Subclasses of Bi-Prestarlike Functions

open access: yesAxioms, 2023
In this article, we introduce and study the behavior of the modules of the first two coefficients for the classes NΣ(γ,λ,δ,μ;α) and NΣ*(γ,λ,δ,μ;β) of normalized holomorphic and bi-univalent functions that are connected with the prestarlike functions.
Tareq Hamadneh   +5 more
doaj   +1 more source

Prisma Noise Coefficients Estimation

open access: yesIGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium, 2022
The PRISMA (PRecursore IperSpettrale della Missione Applicativa) hyperspectral satellite, launched by the Italian Space Agency (ASI) is presently operational on a global scale. The mission includes the hyperspectral imager PRISMA working in the 400-2500 nm spectral range with 234 bands and a panchromatic (PAN) camera (400-750 nm).
Carfora MF   +5 more
openaire   +2 more sources

Coefficient estimates for initial Taylor-Maclaurin coefficients for a subclass of analytic and bi-univalent functions defined by Al-Oboudi differential operator. [PDF]

open access: yesScientificWorldJournal, 2013
We introduce and investigate an interesting subclass 𝒩𝒫 Σ λ,δ(n, β; h) of analytic and bi-univalent functions in the open unit disk 𝕌. For functions belonging to the class 𝒩𝒫 Σ λ,δ(n, β; h), we obtain estimates on the first two Taylor-Maclaurin ...
Bulut S.
europepmc   +2 more sources

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

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

Variational Estimates of the Poroelastic Coefficients [PDF]

open access: yesPoromechanics VI, 2017
Saturated, isotropic, poroelastic materials are classically described by their elastic stiffness, one Biot coefficient and one Biot modulus (Coussy 2010; Dormieux, Molinari, and Kondo 2002). The situation becomes more complex for unsaturated, isotropic, poroelastic materials that require multiple Biot coefficients and moduli (Coussy and Brisard 2009 ...
Brisard, Sébastien, Ghabezloo, Siavash
openaire   +4 more sources

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

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