Results 41 to 50 of about 366 (188)

Regularity of mild solutions to fractional Cauchy problems with Riemann-Liouville fractional derivative

open access: yesElectronic Journal of Differential Equations, 2014
As an extension of the fact that a sectorial operator can determine an analytic semigroup, we first show that a sectorial operator can determine a real analytic alpha-order fractional resolvent which is defined in terms of Mittag-Leffler function and ...
Ya-Ning Li, Hong-Rui Sun
doaj  

Exponential Stability in Mean Square for Neutral Stochastic Partial Functional Differential Equations with Impulses

open access: yesJournal of Applied Mathematics, 2013
We discuss the exponential stability in mean square of mild solution for neutral stochastic partial functional differential equations with impulses. By applying impulsive Gronwall-Bellman inequality, the stochastic analytic techniques, the fractional ...
Nan Ding
doaj   +1 more source

An analyticity criterion for regularized semigroups [PDF]

open access: yesProceedings of the American Mathematical Society, 2002
The authors characterize analytic regularized semigroups of bounded linear operators in terms of the Laplace transform of its generator.
Zheng, Quan, Zhao, Yongsheng
openaire   +2 more sources

From Stability to Chaos: A Complete Classification of the Damped Klein‐Gordon Dynamics

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 9, Page 9696-9708, June 2026.
ABSTRACT We investigate the transition between stability and chaos in the damped Klein‐Gordon equation, a fundamental model for wave propagation and energy dissipation. Using semigroup methods and spectral criteria, we derive explicit thresholds that determine when the system exhibits asymptotic stability and when it displays strong chaotic dynamics ...
Carlos Lizama   +2 more
wiley   +1 more source

Existence and uniqueness of strong solutions for nonlocal evolution equations

open access: yesElectronic Journal of Differential Equations, 2014
The aim of this article is to study the existence and uniqueness of strong solutions for a class of semilinear evolution equations with nonlocal initial conditions. The discussions are based on analytic semigroup theory and fixed point theorems.
Pengyu Chen, Yongxiang Li
doaj  

Analyticity of absorption semigroups

open access: yesSemigroup Forum, 1995
If \(U\) is an analytic positive \(C_0\) semigroup on \(L^p(\Omega)\) generated by \(T\) and \(V\) is a measurable function on \(\Omega\), then by Voigt's perturbation theory we can construct \(U_V(t)\), the positive \(C_0\) semigroup generated (formally) by \(T-V\).
openaire   +1 more source

Criteria for analyticity of subordinate semigroups [PDF]

open access: yesSemigroup Forum, 2008
Let $ψ$ be a Bernstein function. A.~Carasso and T.~Kato obtained necessary and sufficient conditions for $ψ$ to have a property that $ψ(A)$ generates a quasibounded holomorphic semigroup for every generator $A$ of a bounded $C_0$-semigroup in a Banach space, in terms of some convolution semigroup of measures associated with $ψ$.
openaire   +3 more sources

Spreading Speed for a Vector‐Borne Disease System on Non‐Coincident Straight Infinite Cylinders

open access: yesStudies in Applied Mathematics, Volume 156, Issue 6, June 2026.
ABSTRACT Vector‐borne diseases remain an increasing global public health concern. In this work, we investigate the spreading speed of vector‐borne disease via a four‐component reaction–diffusion system posed on non‐coincident straight infinite cylinders, which stands for an unconventional spatial configuration.
Arnaud Ducrot   +2 more
wiley   +1 more source

On the existence of mild solutions to some semilinear fractional integro-differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2010
This paper deals with the existence of a mild solution for some fractional semilinear differential equations with non local conditions. Using a more appropriate definition of a mild solution than the one given in [12], we prove the existence and ...
Toka Diagana   +2 more
doaj   +1 more source

Analytic families of semigroups

open access: yesSemigroup Forum, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

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