Mathematical Inequalities & Applications · Volume 17, Issue 4 Riccati type operator equation and Furuta's question 17-97 Pages 1337-1342 DOI 10.7153/mia-17-97 Downloads Short PDF Full PDF PNG Authors Jiangtao Yuan Caihong Wang Keywords positive semidefinite operator Riccati equation Loewner-Heinz inequality Furuta inequality Subject classes 47A62 47A63 47B15 47B65