Results 71 to 75 of about 169 (75)

Sharp bounded for numerical radius and operator norm inequalities

, 2013
Let ) .,. , (   H be a complex Hilbert space and B(H) denote the -algebra of all bounded linear operators on H. In this paper, we introduce a new upper and lower bounded for numerical radius and operator norm inequalities.
H. Khosravi, M. Khanehgir, E. Faryad, P. Jafari   +3 more
semanticscholar   +1 more source

Some New Grüss’ Type Inequalities for Functions of Selfadjoint Operators in Hilbert Spaces

Sarajevo Journal of Mathematics
Some new inequalities of Grüss' type for functions of selfadjoint operators in Hilbert spaces, under suitable assumptions for the involved operators, are given. Several examples for particular functions of interest are provided as well.
S. Dragomir
semanticscholar   +1 more source

New Jensen’s Type Inequalities for Differentiable Log-Convex Functions of Selfadjoint Operators in Hilbert Spaces

Sarajevo Journal of Mathematics
Some new Jensen's type inequalities for differentiable log-convex functions of selfadjoint operators in Hilbert spaces under suitable assumptions for the involved operators are given.
S. Dragomir
semanticscholar   +1 more source

Controllability of second order discrete-time descriptor systems

E S A I M: Control, Optimisation and Calculus of Variations
This paper is mainly devoted to the controllability of second order discrete-time descriptor systems. Characterizations for different controllability concepts are derived and feedback designs are investigated by transforming the system into an ...
Ha Phi, Do Duc Thuan
semanticscholar   +1 more source

Convergence of an operator series

, 1977
J. Koliha
semanticscholar   +1 more source