• 대한수학회보
• /
• 제37권1호
• /
• pp.53-62
• /
• 2000

In this paper we explore relations between joint Weyl and Browder spectra. Also, we give a spectral characterization of the Taylor-Browder spectrum for special classes of doubly commuting n-tuples of operators and then give a partial answer to Duggal's question.

• 대한수학회논문집
• /
• 제16권2호
• /
• pp.235-241
• /
• 2001

In this paper we study some properties of he joint Weyl and Browder spectra for the slightly larger classes containing doubly commuting n-tuples of hyponormal operators.