Results 41 to 50 of about 824 (164)

Applications of Higher-Order q-Derivative to Meromorphic q-Starlike Function Related to Janowski Function

open access: yesAxioms, 2022
By making use of a higher-order q-derivative operator, certain families of meromorphic q-starlike functions and meromorphic q-convex functions are introduced and studied.
Likai Liu, Rekha Srivastava, Jin-Lin Liu
doaj   +1 more source

ON CLUSTER SETS OF MEROMORPHIC FUNCTIONS [PDF]

open access: yesProceedings of the National Academy of Sciences, 1966
and we let W denote the extended w-plane. Classical theorems of W. Gross and F. Iversen state that the boundary of C is contained in Cr, and any point of the open set CCr that is not in R is in A; moreover, R covers CCr with the possible exception of at most two points, and if there are two exceptional points, then R is W minus these two points (see [1]
openaire   +3 more sources

Combinatorial zeta functions counting triangles

open access: yesJournal of Topology, Volume 19, Issue 2, June 2026.
Abstract In this paper, we compute special values of certain combinatorial zeta functions counting geodesic paths in the (n−1)$(n-1)$‐skeleton of a triangulation of an n$n$‐dimensional manifold. We show that they carry a topological meaning. As such, we recover the first Betti and L2$L^2$‐Betti numbers of compact manifolds, and the linking number of ...
Leo Benard   +3 more
wiley   +1 more source

Study about inclusion relationships and integral preserving properties [PDF]

open access: yesSurveys in Mathematics and its Applications, 2012
The object of the present paper is to investigate a family of integral operators defined on the space of meromorphic functions. By making use of these novel integral operators, we introduce and investigate several new subclasses of starlike, convex ...
Imran Faisal, Maslina Darus
doaj  

Some New Results on Fixed Points of Meromorphic Functions Defined in Annuli

open access: yesJournal of Function Spaces, 2015
The purpose of this paper is to investigate the fixed points of meromorphic functions in annuli. Some well-known facts of fixed points for meromorphic functions in the plane will be considered in annuli.
Zhaojun Wu, Zuxing Xuan, Yuxian Chen
doaj   +1 more source

On the Uniqueness of Meromorphic Functions on Annuli in terms of Deficiencies

open access: yesJournal of Function Spaces, 2020
The purpose of this article is to study the uniqueness of meromorphic functions on annuli. Under a certain condition about deficiencies, we prove some new uniqueness theorems of meromorphic functions on the annulus A=z:1 ...
Dawei Meng, Nan Lu, Sanyang Liu
doaj   +1 more source

Fuzzy Differential Subordination for Meromorphic Function Associated with the Hadamard Product

open access: yesAxioms, 2023
This paper is related to fuzzy differential subordinations for meromorphic functions. Fuzzy differential subordination results are obtained using a new operator which is the combination Hadamard product and integral operator for meromorphic function.
Sheza M. El-Deeb, Alina Alb Lupaş
doaj   +1 more source

Meromorphic functions with positive coefficients [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
Let ∑∗(α, β, k) be a class of meromorphic functions f(z) with positive coefficients in D = {0 < |z| < 1}. The aim of the present note is to prove some properties for the class ∑∗(α, β, k).
openaire   +2 more sources

Degree theory for 4‐dimensional asymptotically conical gradient expanding solitons

open access: yesCommunications on Pure and Applied Mathematics, Volume 79, Issue 5, Page 1151-1298, May 2026.
Abstract We develop a new degree theory for 4‐dimensional, asymptotically conical gradient expanding solitons. Our theory implies the existence of gradient expanding solitons that are asymptotic to any given cone over S3$S^3$ with non‐negative scalar curvature. We also obtain a similar existence result for cones whose link is diffeomorphic to S3/Γ$S^3/\
Richard H. Bamler, Eric Chen
wiley   +1 more source

Some Subclasses of Meromorphic Functions Associated with a Family of Integral Operators

open access: yesJournal of Inequalities and Applications, 2009
Making use of the principle of subordination between analytic functions and a family of integral operators defined on the space of meromorphic functions, we introduce and investigate some new subclasses of meromorphic functions. Such results as inclusion
Zhi-Gang Wang, Zhi-Hong Liu, Yong Sun
doaj   +2 more sources

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