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On the profile of solutions with two sharp layers to a singularly perturbed semilinear Dirichlet problem

Published online by Cambridge University Press:  14 November 2011

E. N. Dancer
Affiliation:
School of Mathematics and Statistics, University of Sydney, Sydney, Australia e-mail: [email protected]
Juncheng Wei
Affiliation:
Department of Mathematics, Chinese University of Hong Kong, Shatin, Hong Kong e-mail: [email protected]

Abstract

We discuss the existence of positive solutions of some singularity perturbed elliptic equations on convex domains with nonlinearity changing sign. In particular, we obtain solutions with both a boundary layer and a sharp interior peak.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1997

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References

1Aronson, D. G. and Weinberger, H. F.. Multidimensional nonlinear diffusion arising in population genetics. Adv. Math. 30 (1978), 3376.Google Scholar
2Clement, P. and Sweers, G.. Existence and multiplicity results for semilinear elliptic eigenvalue problem. Ann. Scuola Norm. Sup. Pisa 14 (1987), 97121.Google Scholar
3Dancer, E. N.. On the number of positive solutions of weakly elliptic problems when a parameter is large. Proc. London Math. Soc. 53 (1986), 429–52.Google Scholar
4Dancer, E. N.. On positive solutions of some singularly perturbed problems when the nonlinearity changes sign. Topol. Methods Nonlinear Anal. 5 (1995), 141–75.Google Scholar
5Dancer, E. N.. A note on asymptotic uniqueness for some nonlinearities which change sign (Preprint, University of Sydney, 1995).Google Scholar
6Dancer, E. N.. Some singularly perturbed problems on annulus and a counterexample to a problem of Gidas, Ni and Nirenberg (to appear in Bull. London Math. Soc).Google Scholar
7Gidas, B., Ni, W.-M. and Nirenberg, L.. Symmetry and related properties via the Maxiumum Principle. Comm. Math. Phys. 68(3) (1979), 209–43.Google Scholar
8Gidas, B., Ni, W.-M. and Nirenberg, L.. Symmetry of positive solutions of nonlinear elliptic equations in R n. Mathematical Analysis and Applications, Part A. Adv. Math. Suppl. Studies 7A (1981), 369402.Google Scholar
9Gilbarg, D. and Trudinger, N. S.. Elliptic partial differential equations of second order, 2nd edn (Berlin: Springer, 1983).Google Scholar
10Hofer, H.. Variational and topological methods in partially ordered Hilbert space. Math. Ann. 261 (1982), 493514.CrossRefGoogle Scholar
11Jang, J.. On spike solutions of singularly perturbed Dirichlet problems. J. Differential Equations 114 (1994), 370–95.CrossRefGoogle Scholar
12Korman, P., Li, Y. and Ouyang, T.. Exact multiplicity results for boundary value problems with nonlinearities generalizing cubic. SIAM J. Math. Anal, (to appear).Google Scholar
13Ni, W.-M. and Takagi, I.. Locating the peaks of least-energy solutions to a semilinear Neumann problem. Duke Math. J. 70 (1993), 247–81.Google Scholar
14Ni, W.-M. and Wei, J.. On the location and profile of spike-layer solutions to a singularly perturbed semilinear Dirichlet problem. Comm. Pure Appl. Math. 48 (1995), 731–68.Google Scholar
15Ni, W.-M., Takagi, I. and Wei, J.. On the location and profile of intermediate solutions to a singularly perturbed semilinear Dirichlet problem (Preprint).Google Scholar
16Peletier, L. A. and Serrin, J.. Uniqueness of positive solutions of semilinear equations in R N. Arch. Rational Mech. Anal. 81 (1993), 247–81.Google Scholar