Eigenvectors of k-psi-contractive wedge operators
- Autori: CAPONETTI D; A TROMBETTA; G TROMBETTA
- Anno di pubblicazione: 2008
- Tipologia: Articolo in rivista (Articolo in rivista)
- Parole Chiave: Measure of noncompactness, k-$\psi$-contractiove operator \sep $\psi$-condensing operator \sep wedge.
- OA Link: http://hdl.handle.net/10447/40010
Abstract
We present new boundary conditions under which the fixed point index of a strict-$\psi$-contractive wedge operator is zero. Then we investigate eigenvalues and corresponding eigenvectors of k-$\psi$-contractive wedge operators.