The weighted g-Drazin inverse for operators

• Autores: Alegra Dajic, J.J. Koliha
• Localización: Journal of the Australian Mathematical Society, ISSN 1446-7887, Vol. 82, Nº 2, 2007, págs. 163-182
• Idioma: inglés
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• Resumen

  • The paper introduces and studies the weighted g-Drazin inverse for bounded linear operators between Banach spaces, extending the concept of the weighted Drazin inverse of Rakocevic and Wei (Linear Algebra Appl. 350 (2002), 25-39) and of Cline and Greville (Linear Algebra Appl. 29 (1980), 53-62). We use the Mbekhta decomposition to study the structure of an operator possessing the weighted g-Drazin inverse, give an operator matrix representation for the inverse, and study its continuity. An open problem of Rakocevic and Wei is solved.