A Semilinear Furi-Martelli-Vignoli Spectrum
Jürgen Appell
Universität Würzburg, GermanyEspedito De Pascale
Università della Calabria, Arcavacata di Rende, ItalyA. Vignoli
Università di Roma 'Tor Vergata', Italy
![A Semilinear Furi-Martelli-Vignoli Spectrum cover](/_next/image?url=https%3A%2F%2Fcontent.ems.press%2Fassets%2Fpublic%2Fimages%2Fserial-issues%2Fcover-zaa-volume-20-issue-3.png&w=3840&q=90)
Abstract
In this note we extend a spectrum which was introduced by Furi, Martelli and the third author in 1978 for continuous nonlinear maps to a certain new spectrum for a “semilinear pair” (), with being a linear Fredholm operator of index zero, and being nonlinear and continuous.
Cite this article
Jürgen Appell, Espedito De Pascale, A. Vignoli, A Semilinear Furi-Martelli-Vignoli Spectrum. Z. Anal. Anwend. 20 (2001), no. 3, pp. 565–577
DOI 10.4171/ZAA/1031