We investigate boundary conditions for strict-$\psi$-contractive and $\psi$-condensing operators. We derive results on the existence of eigenvectors with positive and negative eigenvalues and we obtain fixed point theorems for classes of noncompact opera\-tors.

CAPONETTI D, TROMBETTA A, TROMBETTA G (2008). A note on boundary conditions for nonlinear operators. INDIAN JOURNAL OF PURE & APPLIED MATHEMATICS, 39(5), 423-433.

A note on boundary conditions for nonlinear operators

CAPONETTI, Diana;
2008-01-01

Abstract

We investigate boundary conditions for strict-$\psi$-contractive and $\psi$-condensing operators. We derive results on the existence of eigenvectors with positive and negative eigenvalues and we obtain fixed point theorems for classes of noncompact opera\-tors.
2008
CAPONETTI D, TROMBETTA A, TROMBETTA G (2008). A note on boundary conditions for nonlinear operators. INDIAN JOURNAL OF PURE & APPLIED MATHEMATICS, 39(5), 423-433.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/40013
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