A characterization of the essential pseudospectra and application to a transport equation

• Autores: Aymen Ammar, Aref Jeribi
• Localización: Extracta mathematicae, ISSN-e 0213-8743, Vol. 28, Nº 1, 2013, págs. 95-112
• Idioma: inglés
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• Resumen

  • In this paper, we introduce an study the essential pseudospectra of closed, densely defined linear operators in the Banach space. We start by giving the definition and we investigate the characterization, the stability and some properties of this essential pseudospectra. The obtained results are used to describe the essential pseudospectra of transport operators