Results 11 to 20 of about 714 (163)

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

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

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

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

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

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

The Univalent Function Created by the Meromorphic Functions Where Defined on the Period Lattice

open access: yesCommunications in Advanced Mathematical Sciences, 2019
The function $ \xi(z)$ is obtained from the logarithmic derivative function  $\sigma(z)$. The elliptic function $ \wp(z) $ is also derived from the $ \xi(z) $ function.
Hasan Sahin, İsmet Yıldız
doaj   +1 more source

On Some Classes with Norms of Meromorphic Function Spaces Defined by General Spherical Derivatives

open access: yesJournal of Mathematics, 2021
The main concerned target of this article is to define and study some concerned classes of meromorphic function spaces using the general spherical derivatives.
A. El-Sayed Ahmed, S. Attia Ahmed
doaj   +1 more source

A note on power of meromorphic function and its shift operator of certain hyper-order sharing one small function and a value

open access: yesМатематичні Студії, 2021
In this article, we obtain two results on $n$ the power of a meromorphic function and its shift operator sharing a small function together with a value which improve and complement some earlier results.
A. Banerjee, A. Roy
doaj   +1 more source

A power of a meromorphic function sharing two small functions with a derivative of the power [PDF]

open access: yesMathematica Bohemica, 2022
In connection to a conjecture of W. Lü, Q. Li and C. Yang (2014), we prove a result on small function sharing by a power of a meromorphic function with few poles with a derivative of the power. Our results improve a number of known results.
Lahiri Indrajit, Sujoy Majumder
doaj   +1 more source

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