Mathematics – Analysis of PDEs
Scientific paper
2010-08-28
Mathematics
Analysis of PDEs
46 pages
Scientific paper
Using three different notions of generalized principal eigenvalue of linear second order elliptic operators in unbounded domains, we derive necessary and sufficient conditions for the validity of the maximum principle, as well as for the existence of positive eigenfunctions satisfying Dirichlet boundary conditions. Relations between these principal eigenvalues, their simplicity and several other properties are further discussed.
Berestycki Henri
Rossi Luca
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