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The existence of principal eigenvalues for problems with indefinite weight function on ℝk

Published online by Cambridge University Press:  14 November 2011

K. J. Brown
Affiliation:
Department of Mathematics, Heriot-Watt University, Riccarton, Edinburgh EH14 4AS, U.K
A. Tertikas
Affiliation:
Department of Mathematics, University of Crete, 71409 Iraklio, Crete, Greece

Synopsis

We investigate the existence of positive principal eigenvalues of the problem - ∆u(x) = λg(x)u(x) for x ∈ ℝk where the weight function g changes sign in ℝk and is negative for |x| sufficiently large.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1993

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References

1Berestycki, H. and Lions, P. L.. Nonlinear scalar field equations I, existence of a ground state. Arch. Rational Mech. Anal. 82 (1983), 313345.CrossRefGoogle Scholar
2Brown, K. J., Cosner, C. and Fleckinger, J.. Principal eigenvalues for problems with indefinite weight function on R n. Proc. Amer. Math. Soc. 109 (1990), 147155.Google Scholar
3Brown, K. J., Lin, S. S. and Tertikas, A.. Existence and nonexistence of steady-state solutions for a selection-migration model in population genetics. Math. Biol. 27 (1989), 91104.CrossRefGoogle Scholar
4Brown, K. J. and Tertikas, A.. On the bifurcation of radially symmetric steady-state solutions arising in population genetics. SIAM J. Math. Anal. 22 (1991), 400413.CrossRefGoogle Scholar
5Fleming, W. H.. A selection-migration model in population genetics. J. Math. Biol. 2 (1975), 219233.CrossRefGoogle Scholar
6Gilbarg, D. and Trudinger, N. S.. Elliptic partial differential equations of second order (Berlin: Springer, 1983).Google Scholar
7Kawohl, B.. Rearrangements and convexity of level sets in PDE. Lecture Notes in Mathematics 1150 (Berlin: Springer, 1985).CrossRefGoogle Scholar