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Валентин Бутузов, V. Butuzov, И.В. Неделько, Ilja Nedelko (2002)
О глобальной области влияния устойчивых решений с внутренними слоями в двумерном случае@@@On the global domain of influence of stable solutions with interior layers in the two-dimensional case, 66
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ISSN 0012-2661, Differential Equations, 2006, Vol. 42, No. 1, pp. 112–125. c Pleiades Publishing, Inc., 2006. Original Russian Text c I.V. Nedel’ko, 2006, published in Differentsial’nye Uravneniya, 2006, Vol. 42, No. 1, pp. 101–113. PARTIAL DIFFERENTIAL EQUATIONS Onset of Solutions with Internal Layers Approaching the Domain Boundary I. V. Nedel’ko Moscow State University, Moscow, Russia Received July 6, 2004 DOI: 10.1134/S0012266106010095 1. INTRODUCTION. STATEMENT OF THE PROBLEM Consider the problem ε (∆ u − u )= f (u, x, ε), (x, t) ∈ D × (0, +∞), (1) u(x, t, ε)= g(x), (x, t) ∈ ∂D × (0, +∞), (2) u(x, 0,ε)= u (x, ε),x ∈ D, (3) where ε> 0 is a small parameter, ∆ is the Laplace operator, x =(x ,x ), and D ⊂ R is a bounded 1 2 connected domain with sufficiently smooth boundary ∂D. Let the following condition be satisfied. ¯ ¯ (A1) There exist functions u ¯(x), u ˆ(x) ∈ C D such that u ¯(x) < u ˆ(x), x ∈ D, and the function f (u, x, 0) vanishes in the domain Π= (u, x): u¯(x) ≤ u ≤ u ˆ(x),x ∈ D only on the surfaces u =
Differential Equations – Springer Journals
Published: Mar 15, 2006
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