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Meromorphic Functions [PDF]

open access: yesDoğuş Üniversitesi Dergisi, 2001
In this paper, we have given the applications of homogeneous differential polynomials to the Nevanlinna’s theory of meromorphic functions in the finite complex plane and given some generalizations by these polynomials.
openaire   +3 more sources

Meromorphic Functions That Share One Finite Value CM or IM with Their First Derivative [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2012
In this paper we shall prove that if a non-constant meromorphic function and its derivative share the value CM (IM) and if ( ), then either or ( ), where and are constants. These results give improvement and extension of the following result of Gundersen:
Amer H. H. Al-Khaladi
doaj   +1 more source

Starlike Meromorphic Functions [PDF]

open access: yesProceedings of the American Mathematical Society, 1972
In this paper we study meromorphic univalent functions which map the unit disk onto the exterior of a domain which is starlike with respect to some finite point different from the origin. We obtain bounds on the arc length, an integral representation, and bounds on the maximum modulus of starlike meromorphic functions.
openaire   +2 more sources

Extreme problems in the space of meromorphic functions of finite order in the half plane. II

open access: yesМатематичні Студії, 2020
The extremal problems in the space of meromorphic functions of order $\rho>0$ in upper half-plane are studed. The method for studying is based on the theory of Fourier coefficients of meromorphic functions.
K.G. Malyutin, A.A. Revenko
doaj   +1 more source

Finiteness of meromorphic functions on an annulus sharing four values regardless of multiplicity [PDF]

open access: yesMathematica Bohemica, 2020
This paper deals with the finiteness problem of meromorphic funtions on an annulus sharing four values regardless of multiplicity. We prove that if three admissible meromorphic functions $f_1$, $f_2$, $f_3$ on an annulus $\mathbb A({R_0})$ share four ...
Duc Quang Si, An Hai Tran
doaj   +1 more source

On total reality of meromorphic functions [PDF]

open access: yes, 2006
We show that if a meromorphic function of degree at most four on a real algebraic curve of an arbitrary genus has only real critical points then it is conjugate to a real meromorphic function after a suitable projective automorphism of the image.Comment:
Degtyarev, A.   +4 more
core   +4 more sources

An Inequality of Meromorphic Vector Functions and Its Application

open access: yesAbstract and Applied Analysis, 2011
Firstly, an inequality for vector-valued meromorphic functions is established which extend a corresponding inequality of Milloux for meromorphic scalar-valued function (1946).
Wu Zhaojun, Chen Yuxian
doaj   +1 more source

Some inequalities on meromorphic function and its derivative concerning small functions in an angular domain

open access: yesJournal of Inequalities and Applications, 2016
In this paper, we investigate the value distribution of a meromorphic function and its derivative concerning small functions in an angular domain and obtain some inequalities for a meromorphic function in an angular domain, which improve the previous ...
Hong Yan Xu   +3 more
doaj   +1 more source

Survey on p-adic meromorphic functions sharing five small ones on a work by Ta Thi Hoai An and Nguyen Viet Phuong, with some additional properties

open access: yesMathematics Open, 2022
Let [Formula: see text] be a complete ultrametric algebraically closed field of characteristic 0, let D be the open disk [Formula: see text] and let [Formula: see text].
Alain Escassut
doaj   +1 more source

On a Certain Subclass of Meromorphic Functions Defined by a New Linear Differential Operator

open access: yesJournal of Mathematical and Fundamental Sciences, 2017
In this article, a new linear differential operator I^k (L_s^a (a_l,b_m )f(z)) is defined by using the Hadamard product of the q-hypergeometric function and a function related to the Hurwitz-Lerch zeta function. By using this linear differential operator,
Khalid Challab   +2 more
doaj   +1 more source

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