Results 61 to 70 of about 1,528,269 (143)

Inverse boundary value problem for a linearized equations of longitudinal waves in rods

Қарағанды университетінің хабаршысы. Математика сериясы
In this article, a question regarding the solvability of an inverse boundary value problem for the linearized equation of longitudinal waves in rods with an integral condition of the first kind was considered.
Y.T. Mehraliyev, R. Iskanderov, A.T. Ramazanova   +2 more
doaj   +1 more source

Quantum-Classical Correspondence of Dynamical Observables, Quantization and the Time of Arrival Correspondence Problem

, 2002
We raise the problem of constructing quantum observables that have classical counterparts without quantization. Specifically we seek to define and motivate a solution to the quantum-classical correspondence problem independent from quantization and ...
AA Kirilov, C Tzanakis, E. A. Galapon, GB Folland, GW Mackey, H Weyl, HJ Groenwold, I Egusquiza, JM Jauch, L van Hove, LE Ballentine, M Trindale, RF Werner, SR de Groot, TA Brun, W Zhang   +15 more
core   +1 more source

Fractional-power approach for the study of elliptic second-order boundary-value problems with variable-operator coefficients in an unbounded domain

Electronic Journal of Differential Equations, 2020
In this article, we give new results on the study of elliptic complete abstract second order differential equations with variable operator coefficients under Dirichlet boundary conditions, and set in $\mathbb{R}_+$.
Fatiha Boutaous
doaj  

Strong-viscosity Solutions: Semilinear Parabolic PDEs and Path-dependent PDEs

, 2019
The aim of the present work is the introduction of a viscosity type solution, called strong-viscosity solution to distinguish it from the classical one, with the following peculiarities: it is a purely analytic object; it can be easily adapted to more ...
Cosso, Andrea, Russo, Francesco
core  

Remarks on two fourth order elliptic problems in whole space

, 2014
We are interested in entire solutions for the semilinear biharmonic equation $\Delta^{2}u=f(u)$ in $\R^N$, where $f(u)=e^{u}$ or $-u^{-p}\ (p>0)$. For the exponential case, we prove that any classical entire solution verifies $-\Delta u>0$ without any ...
Lai, Baishun, Ye, Dong
core   +3 more sources

Dynamical behaviour of a logarithmically sensitive chemotaxis model under time-dependent boundary conditions

European Journal of Applied Mathematics
This article studies the dynamical behaviour of classical solutions of a hyperbolic system of balance laws, derived from a chemotaxis model with logarithmic sensitivity, with time-dependent boundary conditions. It is shown that under suitable assumptions
Padi Fuster Aguilera, Kun Zhao
doaj   +1 more source

Initial-Boundary Value Problem with Dirichlet and Wentzell Conditions for a Mildly Quasilinear Biwave Equation

Учёные записки Казанского университета: Серия Физико-математические науки
For a nonstrictly hyperbolic mildly quasilinear biwave equation in the first quadrant, an initial-boundary value problem with the Cauchy conditions specified on the spatial half-line and the Dirichlet and Wentzell conditions applied on the time half-line
V. I. Korzyuk, J. V. Rudzko
doaj   +1 more source

Classical solutions for the generalized Kadomtsev–Petviashvili I equations [PDF]

Arab Journal of Mathematical Sciences
Purpose – This paper is devoted to the generalized Kadomtsev–Petviashvili I equation. This study aims to propose a new approach for investigation for the existence of at least one global classical solution and the existence of at least two nonnegative ...
Svetlin Georgiev, Aissa Boukarou, Keltoum Bouhali, Khaled Zennir   +3 more
doaj   +1 more source

Classical solution of the initial-boundary value problem for the wave equation with mixed derivative

Современная математика: Фундаментальные направления
In this paper, we study the initial-boundary value problem for a second-order nonhomogeneous hyperbolic equation in a half-strip of the plane with constant coefficients, containing a mixed derivative, with zero and nonzero potentials.
V. S. Rykhlov
doaj   +1 more source

Large time behavior of a Cahn-Hilliard-Boussinesq system on a bounded domain

Electronic Journal of Differential Equations, 2011
We study the asymptotic behavior of classical solutions to an initial-boundary value problem (IBVP) for a coupled Cahn-Hilliard-Boussinesq system on bounded domains with large initial data.
Kun Zhao
doaj