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Morse-Smale index theorems for elliptic boundary deformation problems.
Alessandro PortaluriFrancesca Dalbonosubject
Pure mathematicsGeodesicApplied MathematicsMathematical analysisMixed boundary conditionSpectral flow Maslov index Index Theory Elliptic boundary value problemsElliptic boundary value problemsElliptic boundary value problemElliptic boundary deformation problemMaslov indexNeumann boundary conditionFree boundary problemSpectral flowElliptic boundary deformation problemsIndex TheoryBoundary value problemAtiyah–Singer index theoremAnalysisEnergy functionalMathematicsdescription
AbstractMorse-type index theorems for self-adjoint elliptic second order boundary value problems arise as the second variation of an energy functional corresponding to some variational problem. The celebrated Morse index theorem establishes a precise relation between the Morse index of a geodesic (as critical point of the geodesic action functional) and the number of conjugate points along the curve. Generalization of this theorem to linear elliptic boundary value problems appeared since seventies. (See, for instance, Smale (1965) [12], Uhlenbeck (1973) [15] and Simons (1968) [11] among others.) The aim of this paper is to prove a Morse–Smale index theorem for a second order self-adjoint elliptic boundary value problem in divergence form on a star-shaped domain of the N-dimensional Euclidean space with Dirichlet and Neumann boundary conditions. This result will be achieved by generalizing a recent new idea introduced by authors in Deng and Jones (2011) [5], based on the idea of shrinking the boundary.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-07-01 |