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AuthorChang, K. W. author
TitleNonlinear Singular Perturbation Phenomena [electronic resource] : Theory and Applications / by K. W. Chang, F. A. Howes
ImprintNew York, NY : Springer New York : Imprint: Springer, 1984
Connect tohttp://dx.doi.org/10.1007/978-1-4612-1114-3
Descript VIII, 180 p. 1 illus. online resource

SUMMARY

Our purpose in writing this monograph is twofold. On the one hand, we want to collect in one place many of the recent results on the existยญ ence and asymptotic behavior of solutions of certain classes of singularly perturbed nonlinear boundary value problems. On the other, we hope to raise along the way a number of questions for further study, mostly quesยญ tions we ourselves are unable to answer. The presentation involves a study of both scalar and vector boundary value problems for ordinary difยญ ferential equations, by means of the consistent use of differential inยญ equality techniques. Our results for scalar boundary value problems obeying some type of maximum principle are fairly complete; however, we have been unable to treat, under any circumstances, problems involving "resonant" behavior. The linear theory for such problems is incredibly complicated already, and at the present time there appears to be little hope for any kind of general nonlinear theory. Our results for vector boundary value problems, even those admitting higher dimensional maximum principles in the form of invariant regions, are also far from complete. We offer them with some trepidation, in the hope that they may stimulate further work in this challenging and important area of differential equaยญ tions. The research summarized here has been made possible by the support over the years of the National Science Foundation and the National Science and Engineering Research Council


CONTENT

I. Introduction -- II. Aโ{128}{153}priori Bounds and Existence Theorems -- III. Semilinear Singular Perturbation Problems -- IV. Quasilinear Singular Perturbation Problems -- V. Quadratic Singular Perturbation Problems -- VI. Superquadratic Singular Perturbation Problems -- VII. Singularly Perturbed Systems -- VIII. Examples and Applications -- References -- Author Index -- Sybject Index


Mathematics Mathematical analysis Analysis (Mathematics) Mathematics Analysis



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