Bulletin of the Iranian Mathematical Society

Bulletin of the Iranian Mathematical Society

G-positive and G-repositive solutions to some adjointable operator equations over Hilbert C^{∗}-modules

Document Type : Research Paper

Author
University of Weifang, P. R. China
Abstract
Some necessary and sufficient
conditions are given for the existence of a G-positive
(G-repositive) solution to adjointable operator equations
$AX=C,AXA^{left( astright) }=C$ and $AXB=C$ over Hilbert
$C^{ast}$-modules, respectively. Moreover, the expressions of these
general G-positive (G-repositive) solutions are also derived. Some
of the findings of this paper extend some known results in the
literature.
Keywords
Subjects

Volume 39, Issue 5 - Serial Number 5
October 2013
Pages 971-992

  • Receive Date 02 July 2011
  • Revise Date 05 September 2012
  • Accept Date 08 September 2012