Results 121 to 130 of about 4,343 (301)

On an operator Kantorovich inequality for positive linear maps

Journal of Mathematical Analysis and Applications, 2013
We improve the operator Kantorovich inequality as follows: Let $A$ be a positive operator on a Hilbert space with ...
openaire   +2 more sources

Risk‐aware safe reinforcement learning for control of stochastic linear systems

Asian Journal of Control, EarlyView.
Abstract This paper presents a risk‐aware safe reinforcement learning (RL) control design for stochastic discrete‐time linear systems. Rather than using a safety certifier to myopically intervene with the RL controller, a risk‐informed safe controller is also learned besides the RL controller, and the RL and safe controllers are combined together ...
Babak Esmaeili, Nariman Niknejad, Hamidreza Modares   +2 more
wiley   +1 more source

Modeling and parameter estimation for fractional large‐scale interconnected Hammerstein systems

Asian Journal of Control, EarlyView.
Abstract This paper addresses the challenge of modeling and identifying large‐scale interconnected systems exhibiting memory effects, hereditary properties, and non‐local interactions. We propose a fractional‐order extension of the Hammerstein architecture that incorporates Grünwald–Letnikov operators to capture complex dynamics through multiple ...
Mourad Elloumi, Omar Naifar, Imed Bouzida   +2 more
wiley   +1 more source

Stationary-excess operator and convex stochastic orders [PDF]

The present paper aims to point out how the stationary-excess operator and its iterates transform the s-convex stochastic orders and the associated moment spaces.
Stéphane Loisel, Claude Lefèvre
core  

Application of Differential Subordinations to the Arithmetic–Geometric Means by Using an Operator

Journal of Mathematics
This study investigates differential subordination involving arithmetic and geometric mean approaches associated with a previously introduced operator. While earlier studies considered cases where the dominant function was convex or linear, the present ...
Santosh Mandal, Madan Mohan Soren, Fethiye Müge Sakar, Daniel Breaz, Luminiţa-Ioana Cotîrlǎ   +4 more
doaj   +1 more source

Performance improvement of discrete‐time linear‐quadratic regulators applied to uncertain linear systems using the Tikhonov regularization method

Asian Journal of Control, EarlyView.
Abstract The linear‐quadratic regulator (LQR) problem of optimal control of an uncertain discrete‐time linear system (DTLS) is revisited in this paper from the perspective of Tikhonov regularization. We show that an optimally chosen regularization parameter reduces, compared to the classical LQR, the values of a scalar error function, as well as the ...
Fernando Pazos, Amit Bhaya
wiley   +1 more source

Linear Operator Inequalities for Strongly Stable Weakly Regular Linear Systems

, 1998
: We consider the existence of solutions to certain linear operator inequalities (Lur'e equations) for strongly stable, weakly regular linear systems with generating operators A; B; C; 0.
Ruth F. Curtain
core  

On inequalities for A-numerical radius of operators

, 2020
Let $A$ be a positive operator on a complex Hilbert space $\mathcal{H}.$ Inequalities are presented concerning upper and lower bounds for $A$-numerical radius of operators, which improve on and generalize the existing ones, studied recently in [A. Zamani.
Paul, Kallol, Bhunia, Pintu, Nayak, Raj Kumar   +2 more
core  

Vector and operator trapezoidal type inequalities for continuous functions of selfadjoint operators in Hilbert spaces

, 2011
Some vector and operator generalized trapezoidal inequalities for continuous functions of selfadjoint operators in Hilbert spaces are given.
Sever S. Dragomir, Dragomir, Sever S., Dragomir, Sever S, Dragomir, Sever   +3 more
core   +1 more source

Pulse and Point Optimal Control of Linear Hyperbolic Integro-Differential Systems with Mixed Boundary Conditions

Journal of Optimization, Differential Equations and Their Applications
We investigate an optimal control problem for a linear hyperbolic integrodifferential equation, subject to Robin-type boundary conditions. The control operates as an operator on the equation’s right-hand side, integrating Dirac delta functions concerning
Andrii V. Anikushyn
doaj   +1 more source