On the generalized spectrum for second-order elliptic systems

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We consider the system of homogeneous Dirichlet boundary value problems (*) (FORMULA PRESENTED) in a smooth bounded domain W Í RN, where L1 and L2 are formally selfadjoint second-order strongly uniformly elliptic operators. Using linear perturbation theory, continuation methods, and the Courant-Hilbert variational eigenvalue characterization, we give a detailed qualitative and quantitative description of the real generalized spectrum of (*), i.e., the set ((l, m) Î R2: (*) has a nontrivial solution). The generalized spectrum, a term introduced by Protter in 1979, is of considerable interest in the theory of linear partial differential equations and also in bifurcation theory, as it is the set of potential bifurcation points for associated semilinear systems.

Original languageEnglish (US)
Pages (from-to)345-363
Number of pages19
JournalTransactions of the American Mathematical Society
Volume303
Issue number1
DOIs
StatePublished - 1987

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Bifurcation (mathematics)
Second-order Systems
Elliptic Systems
Boundary value problems
Partial differential equations
Semilinear Systems
Dirichlet Boundary Value Problem
Continuation Method
Bifurcation Theory
Linear partial differential equation
Bifurcation Point
Nontrivial Solution
Elliptic Operator
Perturbation Theory
Hilbert
Bounded Domain
Eigenvalue
Term

ASJC Scopus subject areas

  • Mathematics(all)
  • Applied Mathematics

Cite this

On the generalized spectrum for second-order elliptic systems. / Cantrell, Robert; Cosner, George.

In: Transactions of the American Mathematical Society, Vol. 303, No. 1, 1987, p. 345-363.

Research output: Contribution to journalArticle

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