Results 1 to 10 of about 366 (188)

Space–time analytic smoothing effect of the heat semigroup defined on homogeneous Besov spaces

open access: yesPartial Differential Equations in Applied Mathematics, 2021
We refine the decay estimate of the heat semigroup {T(t)}t≥0defined on homogeneous Besov spaces Ḃp,qs(Rn)for s∈R,p,q∈[1,∞], which is obtained by Kozono et al. (2003).
Taiki Takeuchi
exaly   +3 more sources

Spectra of algebras of block-symmetric analytic functions of bounded type

open access: yesМатематичні Студії, 2022
We investigate algebras of block-symmetric analytic functions on spaces $\ell_{p}(\mathbb{C}^s)$ which are $\ell_{p}$-sums of $\mathbb{C}^{s}.$ We consider properties of algebraic bases of block-symmetric polynomials, intertwining operations on spectra ...
A. Zagorodnyuk, V. V. Kravtsiv
doaj   +1 more source

Dynamics of semigroups generated by analytic functions of the Laplacian on Homogeneous Trees

open access: yesComptes Rendus. Mathématique, 2023
Let $\Psi $ be a non-constant complex-valued analytic function defined on a connected, open set containing the $L^p$-spectrum of the Laplacian $\mathcal{L}$ on a homogeneous tree.
Kumar, Pratyoosh, Rano, Sumit Kumar
doaj   +1 more source

Analyticity of sub-Markovian semigroups [PDF]

open access: yesProceedings of the American Mathematical Society, 1995
Summary: Let \(A\) be a generator of a submarkovian semigroup in \(L^2(M, d\mu)\). We investigate the domain of analyticity of \(\exp(- tA)\) in \(L^p(M, d\mu)\). The same problem for the generator perturbed by a potential is considered.
Liskevich, V. A., Perelmuter, M. A.
openaire   +2 more sources

Existence results for neutral evolution equations with nonlocal conditions and delay via fractional operator

open access: yesOpen Mathematics, 2022
In this paper, we study the existence of solutions for the neutral evolution equations with nonlocal conditions and delay in α\alpha -norm, which are more general than in many previous publications.
Zhang Xuping, Sun Pan
doaj   +1 more source

Existence of solutions for quasilinear random impulsive neutral differential evolution equation

open access: yesArab Journal of Mathematical Sciences, 2018
This paper deals with the existence of solutions for quasilinear random impulsive neutral functional differential evolution equation in Banach spaces and the results are derived by using the analytic semigroup theory, fractional powers of operators and ...
B. Radhakrishnan, M. Tamilarasi
doaj   +1 more source

Positive Solutions for the Initial Value Problem of Fractional Evolution Equations

open access: yesAbstract and Applied Analysis, 2013
By using the fixed point theorems and the theory of analytic semigroup, we investigate the existence of positive mild solutions to the Cauchy problem of Caputo fractional evolution equations in Banach spaces.
He Yang, Yue Liang
doaj   +1 more source

SOBRE LA ANALITICIDAD DEL SEMIGRUPO Co ASOCIADO A UN SISTEMA VISCOELÁSTICO

open access: yesPesquimat, 2014
We proved that the semigroup C0 associated to a viscoelastic system is analytic and exponentially stable.
Yolanda Silvia Santiago Ayala
doaj   +1 more source

New interpolation spaces and strict Hölder regularity for fractional abstract Cauchy problem

open access: yesBoundary Value Problems, 2021
We know that interpolation spaces in terms of analytic semigroup have a significant role into the study of strict Hölder regularity of solutions of classical abstract Cauchy problem (ACP).
Md Mansur Alam   +2 more
doaj   +1 more source

Semigroups of Composition Operators in Analytic Morrey Spaces [PDF]

open access: yesIntegral Equations and Operator Theory, 2020
Analytic Morrey spaces belong to the class of function spaces which, like BMOA, are defined in terms of the degree of oscillation on the boundary of functions analytic in the unit disc. We consider semigroups of composition operators on these spaces and focus on the question of strong continuity. It is shown that these semigroups behave like on BMOA.
Petros Galanopoulos   +2 more
openaire   +4 more sources

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