Results 11 to 20 of about 173,317,384 (288)

Exponent of convergence for double sequences and selection principles

open access: yesFilomat, 2017
In this paper, we will define the exponent of convergence for double sequences and in that terminology, we will prove three new theorems in theory of selection principles for double ...
Nada Damljanovic   +2 more
openaire   +4 more sources

On the exponent of convergence of negatively curved manifolds without Green’s function [PDF]

open access: yesPublicacions Matemàtiques, 2018
In this paper we prove that for every complete n-dimensional Riemannian manifold without Green's function and with its sectional curvatures satisfying K ≤-1, the exponent of convergence is greater than or equal to n - 1. Furthermore, we show that this inequality is sharp. This result is well known for manifolds with constant sectional curvatures K = -1.
Melián, María V.   +2 more
openaire   +7 more sources

Exponent of convergence of solutions to linear differential equations in the unit disc

open access: yesElectronic Journal of Differential Equations, 2015
In this article, we study the exponent of convergence of $f^{(i) }-\varphi $ where $f\not\equiv 0$ is a solution of linear differential equations with analytic and meromorphic coefficients in the unit disc and $\varphi $ is a small function of $f ...
Nacera Berrighi, Saada Hamouda
doaj   +1 more source

On the Exponent of Convergence for the Zeros of the Solutions of

open access: yesJournal of Inequalities and Applications, 2010
Let and be entire functions of order less than 1 with and transcendental. We prove that every solution of the equation , , being has zeros with infinite exponent of convergence.
Alotaibi Abdullah
doaj   +1 more source

Growth and oscillation of some polynomials generated by solutions of complex differential equations [PDF]

open access: yesOpuscula Mathematica, 2015
In this paper, we continue the study of some properties on the growth and oscillation of solutions of linear differential equations with entire coefficients of the type \[f^{\prime \prime }+A(z) f^{\prime }+B(z) f=0\] and \[f^{\left( k\right) }+A_{k-2}(z)
Zinelâabidine Latreuch   +1 more
doaj   +1 more source

On exponents of convergence of subsequences [PDF]

open access: yesCzechoslovak Mathematical Journal, 1984
Let \(A=\{a_ n\}^{\infty}_{n=1}\) be a non-decreasing sequence of positive real numbers with \(a_ n\to +\infty\) (n\(\to \infty)\). It is well known that there is a unique number \(\lambda =\lambda (A)\in [0,+\infty]\) (so-called exponent of convergence of A) such that the series \(\sum^{\infty}_{n=1}a_ n^{-t}\) converges for \(t\in R\), \(t>\lambda ...
openaire   +1 more source

Stochastic stability and the moment Lyapunov exponent for a gyro-pendulum system driven by a bounded noise [PDF]

open access: yesMechanical Sciences, 2023
The stochastic stability of a gyro-pendulum system parametrically excited by a real noise is investigated by the moment Lyapunov exponent in the paper. Using the spherical polar and non-singular linear stochastic transformations and combining these with ...
S. Li, J. Lv
doaj   +1 more source

On the zeros of solutions of any order of derivative of second order linear differential equations taking small functions

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2011
In this paper, we investigate the hyper-exponent of convergence of zeros of $f^{(j)}(z)-\varphi(z) (j\in N)$, where $f$ is a solution of second or $k(\geq2)$ order linear differential equation, $\varphi(z)\not\equiv0$ is an entire function satisfying ...
Jin Tu, Hong-Yan Xu, Cui-Yan Zhang
doaj   +1 more source

Convergence Rates of Monotone Schemes for Conservation Laws for Data with Unbounded Total Variation [PDF]

open access: yes, 2022
We prove convergence rates of monotone schemes for conservation laws for Hölder continuous initial data with unbounded total variation, provided that the Hölder exponent of the initial data is greater than 12/.
Lye, Kjetil Olsen   +3 more
core   +1 more source

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