Abstract
We consider operator equations of the form
, (1) where A 0, B 0 are linear operators between real Banach spaces and N(λ, u) is a nonlinear operator with the property that N(λ, 0)=0 for all real λ. Assuming that λ 0, a specific value of λ, is an isolated eigenvalue of A 0 − λB 0 of multiplicity m, we study the phenomenon of bifurcation for equation (1), where it is merely assumed that N(λ, u) is Lipschitz continuous in u near u=0 with a small Lipschitz constant. It is shown that when (1) has a variational structure, for each suitable normalization of u, two non-zero solutions (λ, u) occur near (λ0,0) (m pairs occur if N is odd in u). Further results concern the existence of branches of solutions when m is odd and the asymptotic behavior of solutions in terms of the size of the Lipschitz constant. The motivation for the study and the main application of the results concerns buckling of a von Kármán plate resting on a foundation.
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Note: This research was sponsored by the United Kingdom Science Research Council and the United States Army under Contract No. DAAG29-75-C-0024, and the National Science Foundation under Grant MPS 75-06556.
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McLeod, J.B., Turner, R.E.L. Bifurcation for non-differentiable operators with an application to elasticity. Arch. Rational Mech. Anal. 63, 1–45 (1976). https://doi.org/10.1007/BF00280140
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DOI: https://doi.org/10.1007/BF00280140