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Singularly perturbed problems in partial differential equations: A survey. (English) Zbl 1024.35007

The authors survey a surprisingly large amount of material on singularly perturbed partial differential equations and which indeed can serve as an introduction to some of the ideas and methods of singular perturbation theory. This paper limits its coverage to some standard singular perturbation models considered by various workers and the methods developed by numerous researchers during 1980-2000.
Reviewer: Jiaqi Mo (Wuhu)

MSC:

35B25 Singular perturbations in context of PDEs
35-02 Research exposition (monographs, survey articles) pertaining to partial differential equations
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