Weyl type theorems for polaroid operators

• Autores: Pietro Aiena , Maria T. Biondi
• Localización: Extracta mathematicae, ISSN-e 0213-8743, Vol. 23, Nº 2, 2008, págs. 103-118
• Idioma: inglés
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• Resumen

  • This paper concerns two variants of Weyl's theorem, for bounded linear operators de¯ned on Banach spaces, the property (w) and the property (b). We study the relationship between these two property in the framework of polaroid and a-polaroid operators.