Parabolic - hyperbolic boundary layer [PDF]
Monica De AngelisA boundary value problem related to a parabolic higher order operator with a small parameter is analized. When the small parameter tends to zero, the reduced operator is hyperbolic. When t tends to infinity a parabolic hyperbolic boundary layer appears. In this paper a rigorous asymptotic approximation uniformly valid for all t is established.View original: http://arxiv.org/abs/1207.2191
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