Results 101 to 110 of about 15,112,532 (216)

Sufficient conditions for meromorphic starlikeness and close-to-convexity of order α

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
The object of the present paper is to derive a property of certain meromorphic functions in the punctured unit disk. Our main theorem contains certain sufficient conditions for starlikeness and close-to-convexity of order α of meromorphic functions.
Nak Eun Cho, Shigeyoshi Owa
doaj   +1 more source

A New Class of Meromorphic Multivalent Functions Involving Certain Linear Operator

open access: yes, 2016
[[abstract]]Making use of certain extended derivative operator of Ruscheweyh type, we introduce a new class Jp(; ; ) of meromorphic multivalent function in the punctured disk D = fz : z 2 C; 0 < jzj < 1g, and obtain some sucient conditions for the ...
J. K. Prajapat, S. P. Goyal
core  

Meromorphic functions that share four or three small functions with their difference operators

open access: yesAdvances in Difference Equations, 2019
In this paper, we prove that non-constant meromorphic functions of finite order and their difference operators are identical, if they share four small functions “IM”, or share two small functions and ∞ CM. Our results show that a conjecture posed by Chen–
Huifang Liu, Zhiqiang Mao
doaj   +1 more source

Simple meromorphic functions are algebraic

open access: yes, 2013
International audienceWe exhibit a class of meromorphic functions in two variables conjugated to algebraic functions using the geometry of the foliation by level ...
Casale, Guy
core   +1 more source

Borel Directions and Uniqueness of Meromorphic Functions

open access: yesAbstract and Applied Analysis, 2013
We investigate the relationship between Borel directions and uniqueness of meromorphic functions and obtain some results of meromorphic functions sharing four distinct values IM and one set in an angular domain containing a Borel line.
Keyu Zhang, HongYan Xu, Hongxun Yi
doaj   +1 more source

Hadamard Product Of Meromorphic p-valent Functions with Negative Coefficients [PDF]

open access: yes, 2014
In this research we introduce the new class P of meromorphic p-valent functionswith negative coe¢ cient. Sharp results concerning coe¢ cient inequalities, growth and distortion, radii of starlikeness and convexity and the extreme points for the class P ...
Oqielat, Moa'ath N.
core  

Meromorphic characteristic functions

open access: yes, 1992
Subject of inquiry: meromorphic functions in complex plane, characteristic functions. The work covers the usage of Keldysh and Runge approximate methods for characteristic functions proof. Almost full analogue of Mittag-Leffleur theorem has been obtained
Sharshanova-Khodareva Galina Alexandrovna
core  

On two classes of universal meromorphic functions

open access: yes, 2013
peer reviewedWe consider two classes of meromorphic functions, which have universal approximation properties with respect to translations, and prove that both are residual subsets of the space of all meromorphic functions.
MEYRATH, Thierry
core   +1 more source

Meromorphic mappings of torus onto the Riemann sphere

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2013
The meromorphic mappings of the two dimensional torus onto the Riemann sphere are studied. Their connections with loxodromic meromorphic functions in the punctured plane are considered.
A. Ya. Khrystiyanyn, A. A. Kondratyuk
doaj   +1 more source

Meromorphic Functions [PDF]

open access: yes, 2011
Bu çalışmada, homojen diferansiyel polinomlar Nevanlinna kuramına uygulandı ve bu homojen polinomlarla bazı genelleştirmeler verildi.In this paper, we have given the applications of homogeneous differential polynomials to the Nevanlinna’s theory of ...
DÖNMEZ, Ali
core   +2 more sources

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