Anderson's theorem for compact operators

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/33657

Title:	Anderson's theorem for compact operators
Authors:	Gau,Hwa-Long;Wu,Pei Yuan
Contributors:	數學研究所
Keywords:	NUMERICAL RANGE;BOUNDARY
Date:	2006
Issue Date:	2010-07-07 11:40:44 (UTC+8)
Publisher:	中央大學
Abstract:	It is shown that if A is a compact operator on a Hilbert space with its numerical range W(A) contained in the closed unit disc (D) over bar and with W(A) intersecting the unit circle at infinitely many points, then (WA) over bar is equal to (D) over bar.
Relation:	PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY
Appears in Collections:	[Graduate Institute of Mathematics] journal & Dissertation

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