Characterizations of EP and normal Banach algebra elements and Banach space operators

✍ Scribed by Enrico Boasso; Vladimir Rakocevic

• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 265 KB
• Volume: 435
• Category: Article
• ISSN: 0024-3795
• DOI: 10.1016/j.laa.2011.01.031

✦ Synopsis

Several characterizations of EP and normal Moore-Penrose invertible Banach algebra elements will be considered. The Banach space operator case will be also studied. The results of the present article will extend well known facts obtained in the frames of matrices and Hilbert space operators.