Results 61 to 70 of about 5,661 (277)

Approximate Controllability for Impulsive Riemann-Liouville Fractional Differential Inclusions

open access: yesAbstract and Applied Analysis, 2013
We study the control systems governed by impulsive Riemann-Liouville fractional differential inclusions and their approximate controllability in Banach space.
Zhenhai Liu, Maojun Bin
doaj   +1 more source

An improved Liouville type theorem for Beltrami flows

open access: yes, 2022
In this note, we improved the Liouville type theorem for the Beltrami flows. Two different methods are used to prove it. One is the monotonicity method, and the other is proof by contradiction.
Zhang, Zhibing, Wang, Na
core   +1 more source

Stable factorization of the Calderón problem via the Born approximation

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 6, June 2026.
Abstract In this article, we prove the existence of the Born approximation in the context of the radial Calderón problem for Schrödinger operators. The Born approximation naturally appears as the linear component of a factorization of the Calderón problem; we show that the nonlinear part, obtaining the potential from the Born approximation, enjoys ...
Thierry Daudé   +3 more
wiley   +1 more source

THE FALLACY OF «LIOUVILLE'S THEOREM» AND PREDICTABLE ATMOSPHERE AND CLIMATE

open access: yesInterCarto. InterGIS, 2016
The paper substantiates the fallacy of «Liouville theorem» and, accordingly, the inability to be based on its prediction of the behavior of the atmosphere and climate.
V. S. Datsko
doaj   +1 more source

Coulomb branch algebras via symplectic cohomology

open access: yesJournal of Topology, Volume 19, Issue 2, June 2026.
Abstract Let (M¯,ω)$(\bar{M}, \omega)$ be a compact symplectic manifold with convex boundary and c1(TM¯)=0$c_1(T\bar{M})=0$. Suppose that (M¯,ω)$(\bar{M}, \omega)$ is equipped with a convex Hamiltonian G$G$‐action for some connected, compact Lie group G$G$.
Eduardo González   +2 more
wiley   +1 more source

Existence Results for the Distributed Order Fractional Hybrid Differential Equations

open access: yesAbstract and Applied Analysis, 2012
We introduce the distributed order fractional hybrid differential equations (DOFHDEs) involving the Riemann-Liouville differential operator of order ...
Hossein Noroozi   +2 more
doaj   +1 more source

On Non‐Compact Extended Bach Solitons

open access: yesMathematische Nachrichten, Volume 299, Issue 5, Page 1140-1151, May 2026.
ABSTRACT We study the characterization of non‐compact solitons of the extended Bach flow, known as an extended Bach soliton. We prove that a weakly conformally flat extended Bach soliton (Mn,g,V)$(M^n,g,V)$ with harmonic Weyl tensor is Bach‐flat and the potential vector field V$V$ is conformal.
Rahul Poddar
wiley   +1 more source

An Edge Dislocation in an Epitrochoidal Domain

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 5, May 2026.
ABSTRACT We use the techniques of conformal mapping and analytic continuation to derive a closed‐form solution to the plane elasticity problem of an edge dislocation in an isotropic elastic epitrochoidal finite domain. The epitrochoidal boundary of the finite domain is traction‐free.
Xu Wang, Peter Schiavone
wiley   +1 more source

A new look at the quantum Liouville theorem

open access: yes, 2020
We clarify certain confusions in the literature of the density operator in quantum mechanics, and demonstrate that the quantum Liouville theorem has the same form in both the Schrodinger and the Heisenberg pictures.  Our starting point is to treat ...
P. T. Leung and G. J. Ni
core   +2 more sources

On the Nonhomogeneous Fourth-Order p-Laplacian Generalized Sturm-Liouville Nonlocal Boundary Value Problems

open access: yesDiscrete Dynamics in Nature and Society, 2012
We study the nonlinear nonhomogeneous n-point generalized Sturm-Liouville fourth-order p-Laplacian boundary value problem by using Leray-Schauder nonlinear alternative and Leggett-Williams fixed-point theorem.
Jian Liu, Zengqin Zhao
doaj   +1 more source

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