Results 1 to 10 of about 113 (96)

The Quasireversibility Regularization Method for Identifying the Unknown Source for the Modified Helmholtz Equation [PDF]

open access: yesJournal of Applied Mathematics, 2013
This paper discusses the problem of determining an unknown source which depends only on one variable for the modified Helmholtz equation. This problem is ill-posed in the sense that the solution (if it exists) does not depend continuously on the data ...
Xiao-Xiao Li   +3 more
doaj   +3 more sources

On the Quasireversibility of a Multiclass Brownian Service Station

open access: yesAnnals of Probability, 1990
The object of study in this paper is a Brownian model of a multiclass service station. Such Brownian models arise as heavy traffic limits of conventional queueing models in which several different types or classes of customers are processed through a common service facility.
Harrison, J. M., Williams, R. J.
exaly   +3 more sources

An inversion method for parabolic equations based on quasireversibility

open access: yesComputers and Mathematics With Applications, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
M Tadi
exaly   +2 more sources

Approximate global convergence and quasireversibility for a coefficient inverse problem with backscattering data [PDF]

open access: yesJournal of Mathematical Sciences, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Larisa Beilina, Beilina L
exaly   +3 more sources

Brownian Models of Feedforward Queueing Networks: Quasireversibility and Product Form Solutions

open access: yesAnnals of Applied Probability, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Harrison, J. M., Williams, R. J.
exaly   +3 more sources

Quasireversibility methods for non-well-posed problems

open access: yesElectronic Journal of Differential Equations, 1994
$$displaylines{ u_t+Au = 0, quad ...
G. W. Clark, S. F. Oppenheimer
doaj   +2 more sources

Quasireversibility for inhomogeneous ill-posed problems in Hilbert spaces

open access: yesElectronic Journal of Differential Equations, 2010
In a Hilbert space $mathcal{H}$, the inhomogeneous ill-posed abstract Cauchy problem is given by $frac{du}{dt} = Au(t) + h(t)$, $u(0) = chi$, $0 leq t < T$; where $A$ is a positive self-adjoint linear operator acting on $mathcal{H}$, $chi in ...
Beth M. Campbell Hetrick
doaj   +2 more sources

Restoring quasireversibility with a single topological charge [PDF]

open access: yesPhysical Review A, 2017
We numerically study a rotating Bose-Einstein condensate placed transiently over the critical rotation frequency i.e. in a regime where the rotation frequency is larger than the radial frequency of the confinement. We study the reversibility of this process depending on the strength of the interactions and the presence of vortices.
Christophe Besse   +2 more
exaly   +5 more sources

A Modified Regularization Method for Inverse Problems of Nonhomogeneous Differential Operator Equation

open access: yesJournal of Mathematics
This paper investigates an abstract nonhomogeneous backward Cauchy problem governed by an unbounded linear operator in a Hilbert space H. The coefficient operator in the equation is assumed to be unbounded, self-adjoint, positive, and to possess a ...
Nihed Teniou
exaly   +2 more sources

Poisson flows in single class open networks of quasireversible queues

open access: yesStochastic Processes and Their Applications, 1982
AbstractThis paper analyzes open networks of quasireversible nodes with a single class of customers and in equilibrium. A simple argument shows, under a stability conditions, that a flow on a link of such a network is Poisson if and only if the link is not part of a loop.
J Walrand
exaly   +3 more sources

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