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Numerical treatment of two‐parameter singularly perturbed parabolic convection diffusion problems with non‐smooth data

Mathematical methods in the applied sciences, 2018
In the present work, we consider a parabolic convection‐diffusion‐reaction problem where the diffusion and convection terms are multiplied by two small parameters, respectively.
M. Chandru, P. Das, H. Ramos
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Nonlinear singularly perturbed problems of ultra parabolic equations

Applied Mathematics and Mechanics, 2008
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Lin, Surong, Mo, Jiaqi
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Concentrating solutions for singularly perturbed double phase problems with nonlocal reaction

Journal of Differential Equations, 2023
Wen Zhang   +2 more
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Singularly perturbed boundary value problems

Acta Mathematicae Applicatae Sinica, 1999
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Some singular singularly-perturbed problems. II.

1999
Summary: This paper continuous part I published in the previous number of the same volume. For the corresponding summary see [ibid. 15, No. 3, 260--271 (1999; Zbl 0968.34015)].
Chang, K. W., Meng, J.
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Averaging and Linear Programming in Some Singularly Perturbed Problems of Optimal Control

, 2013
The paper aims at the development of an apparatus for analysis and construction of near optimal solutions of singularly perturbed (SP) optimal controls problems (that is, problems of optimal control of SP systems) considered on the infinite time horizon.
V. Gaitsgory, Sergey Rossomakhine
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Singularly Perturbed Boundary Value Problems

1991
Consider the two-point problem ey”+a(x)y’+b(x)y=f(x) on 0≤x≤1 where a(x)>0 and with the boundary values y(0) and y(1) prescribed. We shall suppose that a, b, and f are arbitrarily smooth, and we shall prove that the asymptotic solution will exist, be unique, and have the form $$y\left( {x,\varepsilon } \right) = Y\left( {x,\varepsilon } \right ...
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On Nonlinear Singularly Perturbed Initial Value Problems

SIAM Review, 1988
The author studies the singular perturbation initial value problem for the nonlinear system \(x'=f(x,y,t,\epsilon),\) \(\epsilon y'=g(x,y,t,\epsilon)\) on a bounded interval \([0,1]\) with smooth vector functions \(f\) and \(g\) of dimensions \(m\) and \(n\) respectively and with prescribed vector function \(x(0),y(0)\).
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Singularly perturbed initial value problems

1974
£y" + f(x,y,y',6) = O, 0 0 is a small parameter and "prime" denotes differentiation with respect to x. We shall formulate conditions under which the problem (i.i), (1.2) has a unique solution y(x, e) existing on the entire interval [0,b], for e sufficiently small. We shall also obtain explicit bounds on y(x,E) and y' (x,e) as g + 0. In particular, we
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Singularly Perturbed Optimal Control Problems. I: Convergence

SIAM Journal on Control and Optimization, 1976
The problem studied is as follows: when does the full solution of minimizing $x^0 (T)$, given \[\begin{gathered} \dot x(t) = f(x(t),y(t),u(t)),\quad u(t) \in U, \hfill \\ \varepsilon \dot y(t) = g(x(t),y(t),u(t)),\quad 0 \leqq t \leqq T, \hfill \\ \end{gathered} \] with boundary conditions on x and y, converge in some sense to the reduced solution of ...
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