Results 11 to 20 of about 7,995 (254)

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

Relaxation to Fixed Points in the Logistic and Cubic Maps: Analytical and Numerical Investigation

open access: yesEntropy, 2013
Convergence to a period one fixed point is investigated for both logistic and cubic maps. For the logistic map the relaxation to the fixed point is considered near a transcritical bifurcation while for the cubic map it is near a pitchfork bifurcation. We
Edson D. Leonel   +2 more
doaj   +1 more source

On Complex Oscillation Property of Solutions for Higher-Order Periodic Differential Equations

open access: yesJournal of Inequalities and Applications, 2007
We investigate properties of the zeros of solutions for higher-order periodic differential equations, and prove that under certain hypotheses, the convergence exponent of zeros of the product of two linearly independent solutions is infinite.
Shi-An Gao, Zong-Xuan Chen
doaj   +2 more sources

General Bahr-Esseen inequalities and their applications

open access: yesJournal of Inequalities and Applications, 2017
We study the Bahr-Esseen inequality. We show that the Bahr-Esseen inequality holds with exponent p if it holds with exponent q > p $q>p$ for the truncated and centered random variables.
István Fazekas, Sándor Pecsora
doaj   +1 more source

Asymptotic Analysis of Low Energy Extremals with Γ-Convergence in Variable Exponent Lebesgue Spaces

open access: yesFractal and Fractional, 2022
In many physical models, internal energy will run out without external energy sources. Therefore, finding optimal energy sources and studying their behavior are essential issues.
Adil Siddique   +3 more
doaj   +1 more source

Region of Convergence of Dirichlet Series with Complex Exponents [PDF]

open access: yesProceedings of the American Mathematical Society, 1956
the series converges absolutely. In this paper we give a simpler definition (5) of the maximal region, a generalization (4) of the CauchyHadamard formula to give the distance from an interior point to the frontier of this region, and, as an application of this formula, a generalization (Theorem 2) of Hille's result.
openaire   +2 more sources

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