Title of article :
On the operator equation AX=XAX Original Research Article
Author/Authors :
John Holbrook، نويسنده , , Eric Nordgren، نويسنده , , Heydar Radjavi، نويسنده , , Peter Rosenthal، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1999
Abstract :
It is shown that for an operator A on a Hilbert space every solution X of the equation AX=XAX is an idempotent precisely when every restriction of A to an invariant subspace has a dense range.
Keywords :
Operator equation , Idempotent , Quasia?nity
Journal title :
Linear Algebra and its Applications
Journal title :
Linear Algebra and its Applications
