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Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

Claremont Colleges

1994

Local degree

Articles 1 - 2 of 2

Full-Text Articles in Physical Sciences and Mathematics

Multiple Solutions For A Nonlinear Dirichlet Problem, Alfonso Castro, Jorge Cossio Nov 1994

Multiple Solutions For A Nonlinear Dirichlet Problem, Alfonso Castro, Jorge Cossio

All HMC Faculty Publications and Research

The authors prove that a semilinear elliptic boundary value problem has five solutions when the range of the derivative of the nonlinearity includes at least the first two eigenvalues. Extensive use is made of Lyapunov-Schmidt reduction arguments, the mountain pass lemma, and characterizations of the local degree of critical points.


Multiple Solutions For A Semilinear Dirichlet Problem, Alfonso Castro, Jorge Cossio Nov 1994

Multiple Solutions For A Semilinear Dirichlet Problem, Alfonso Castro, Jorge Cossio

All HMC Faculty Publications and Research

The authors prove that a semilinear elliptic boundary value problem has five solutions when the range of the derivative of the nonlinearity includes at least the first two eigenvalues. Extensive use is made of Lyapunov–Schmidt reduction arguments, the mountain pass lemma, and characterizations of the local degree of critical points.