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Resolvent Positive Operators and Positive Fractional Resolvent Families [PDF]

open access: yesJournal of Function Spaces, 2021
This paper is concerned with positive α-times resolvent families on an ordered Banach space E (with normal and generating cone), where ...
Nan-Ding Li, Ru Liu, Miao Li
doaj   +3 more sources

Spectrum of a family of operators [PDF]

open access: yesSurveys in Mathematics and its Applications, 2011
Having as start point the classic definitions of resolvent set and spectrum of a linear bounded operator on a Banach space, we introduce the resolvent set and spectrum of a family of linear bounded operators on a Banach space.
Simona Macovei
doaj   +3 more sources

Fractional resolvent family generated by normal operators

open access: yesAIMS Mathematics, 2023
The main focus of this paper is on the relationship between the spectrum of generators and the regularity of the fractional resolvent family. We will give a counter-example to show that the point-spectral mapping theorem is not valid for $ \{S_{\alpha}(t)
Chen-Yu Li
doaj   +2 more sources

Strong coupling limit of a family of Chern-Simons-matter theories

open access: yesJournal of High Energy Physics, 2018
We investigate the strong coupling limit of a family of Chern-Simons-matter theories in the planar limit. The family consists of N=3 $$ \mathcal{N}=3 $$ theories with the gauge group UN1k1×UN2k2 $$ \mathrm{U}{\left({N}_1\right)}_{k_1} \times \mathrm{U ...
Takao Suyama
doaj   +3 more sources

Representation and stability of distributed order resolvent families

open access: yesAIMS Mathematics, 2022
We consider the resolvent family of the following abstract Cauchy problem (1.1) with distributed order Caputo derivative, where A is a closed operator with dense domain and satisfies some further conditions.
Chen-Yu Li
doaj   +1 more source

On the Study of Semilinear Fractional Differential Equations Involving Atangana-Baleanu-Caputo Derivative

open access: yesUniversal Journal of Mathematics and Applications, 2023
This work aims to study the existing results of mild solutions for a semi-linear Atangana-Baleanu-Caputo fractional differential equation with order $ 0 < \theta < 1 $ in an arbitrary Banach space.
Khalid Hilal   +2 more
doaj   +1 more source

Approximation of point interactions by geometric perturbations in two-dimensional domains

open access: yesBulletin of Mathematical Sciences, 2023
In this paper, we present a new type of approximation of a second-order elliptic operator in a planar domain with a point interaction. It is of a geometric nature that the approximating family consists of operators with the same symbol and regular ...
D. I. Borisov, P. Exner
doaj   +1 more source

Approximation of solutions to integro-differential time fractional wave equations in $ L^{p}- $space

open access: yesNetworks and Heterogeneous Media, 2023
In this paper, we investigate the abstract integro-differential time-fractional wave equation with a small positive parameter $ \varepsilon $. The $ L^{p}-L^{q} $ estimates for the resolvent operator family are obtained using the Laplace transform, the ...
Yongqiang Zhao, Yanbin Tang
doaj   +1 more source

Mild Solutions of Fractional Integrodifferential Diffusion Equations with Nonlocal Initial Conditions via the Resolvent Family

open access: yesFractal and Fractional, 2023
Fractional integrodifferential diffusion equations play a significant role in describing anomalous diffusion phenomena. In this paper, we study the existence and uniqueness of mild solutions to these equations.
Jia Mu, Zhiyuan Yuan, Yong Zhou
doaj   +1 more source

Operators in Rigged Hilbert spaces: some spectral properties [PDF]

open access: yes, 2013
A notion of resolvent set for an operator acting in a rigged Hilbert space $\D \subset \H\subset \D^\times$ is proposed. This set depends on a family of intermediate locally convex spaces living between $\D$ and $\D^\times$, called interspaces.
Bellomonte, G.   +2 more
core   +3 more sources

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