Mathematics, Department of
Date of this Version
1992 American Mathematical Society
It has been conjectured that a certain operator T belonging to the group ff of invertible elements of the algebra Alg Z of doubly infinite uppertriangular bounded matrices lies outside the connected component of the identity in W. In this note we show that T actually lies inside the connected component of the identity of & .
proceedings of the american mathematical society Volume 114, Number 1, January 1992