«partial isometry»

Complex symmetric partial isometries

Partial isometries

A simplified treatment of the structure of semigroups of partial isometries.

. O A ] 2 7 Ju n 20 06 OPEN PARTIAL ISOMETRIES AND POSITIVITY IN OPERATOR SPACES

We study positivity in C*-modules and operator spaces using open tripotents, and an ordered version of the 'noncommutative Shilov boundary'. Because of their independent interest, we also systematically study open tripo-tents and their properties.

Matrix Inequalities and Partial Isometries that Arise in X-ray Crystallography

In X-ray crystallography, one needs to consider matrices of the form P = (X T X)=M, where X 2 IR M n has rows X i : with 1 i M such that jX i :vj c and kX i :k = 1 for some given c 2 (0; 1) and v 2 IR n. Using the theory of majorization, we give a short proof for some inequalitie

Extending partial isometries of antipodal graphs

A characterization of the class of partial isometries

Open partial isometries and positivity in operator spaces

Approximate Unitary Equivalence of Power Partial Isometries

Factorization of Matrices into Partial Isometries