Results 1 to 10 of about 257 (102)
Quasireversibility methods for non-well-posed problems [PDF]
Electronic Journal of Differential Equations, 1994 $$displaylines{ u_t+Au = 0, quad ...
G. W. Clark, S. F. Oppenheimer
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The Quasireversibility Regularization Method for Identifying the Unknown Source for the Modified Helmholtz Equation [PDF]
Journal 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
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Quasireversibility for inhomogeneous ill-posed problems in Hilbert spaces
Electronic 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
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Nonlinear Engineering, 2023 In this article, the inverse time problem is investigated. Regarding the ill-posed linear problem, utilize the quasi-reversibility method first. This problem has been regularized and after that provides an iterative regularizing strategy for noisy input ...
Rahimi Mostafa, Rostamy Davood
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Journal of Mathematics, 2022 The Quasi-Reversibility Regularization Method (Q-RRM) provides stable approximate solution of the Cauchy problem of the Helmholtz equation in the Hilbert space by providing either additional information in the Laplace-type operator in the Helmholtz ...
Benedict Barnes +3 more
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Lorenz Bifurcation: Instabilities in Quasireversible Systems
Physical Review Letters, 1999 Summary: We describe the two generic instabilities which arise in quasireversible systems and show that their normal forms are the well-known real Lorenz equations and the Maxwell-Bloch equations. We present for the first time analytic predictions for the appearance of Lorenz chaos and we describe a simple mechanical system which experimentally ...
Clerc Gavilán, Marcel +2 more
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The Journal of Physical Chemistry C, 2022 A theoretical analysis of reversible and quasireversible electrode reactions of a dissolved redox couple under conditions of the novel technique of differential square-wave voltammetry (DSWV) is presented. The technique is recently introduced as a hybrid form between differential pulse voltammetry (DPV) and square-wave voltammetry (SWV) as the two most
Dariusz Guziejewski +3 more
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An inversion method for parabolic equations based on quasireversibility
Computers & Mathematics with Applications, 2002 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tadi, M., Klibanov, M.V., Cai, Wei
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Self-Stabilizing Repeated Balls-into-Bins [PDF]
, 2015 We study the following synchronous process that we call "repeated balls-into-bins". The process is started by assigning $n$ balls to $n$ bins in an arbitrary way.
Becchetti, Luca +4 more
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On prescribed change of profile for solutions of parabolic equations [PDF]
, 2011 Parabolic equations with homogeneous Dirichlet conditions on the boundary are studied in a setting where the solutions are required to have a prescribed change of the profile in fixed time, instead of a Cauchy condition.
Beck J V +8 more
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