Results 141 to 150 of about 11,417 (311)

New generalized numerical radius inequalities for Hilbert space operators

Journal of Inequalities and Applications
We define generalized real and imaginary parts of an operator, as well as the generalized w h , g ( ⋅ ) $w_{h,g}(\cdot )$ numerical radius, which reduces to the t-weighted numerical radius for suitable functions h , g $h,g$ .
Fuad Kittaneh, Vuk Stojiljković
doaj   +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

On inequalities for A-numerical radius of operators

, 2019
Let $A$ be a positive operator on a complex Hilbert space $\mathcal{H}.$ We present inequalities concerning upper and lower bounds for $A$-numerical radius of operators, which improve on and generalize the existing ones, studied recently in [A. Zamani, A-Numerical radius inequalities for semi-Hilbertian space operators, Linear Algebra Appl.
Bhunia, Pintu, Paul, Kallol, Nayak, Raj Kumar   +2 more
openaire   +3 more sources

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  

Unbounded Violations of Bipartite Bell Inequalities via Operator Space Theory

, 2010
In this work we show that bipartite quantum states with local Hilbert space dimension n can violate a Bell inequality by a factor of order Ω(√n∕Log2n) when observables with n possible outcomes are used. A central tool in the analysis is a close relation
Junge, Marius, Palazuelos Cabezón, Carlos, I. Villanueva, M. M. Wolf, Pérez García, David, Wolf, Michael M., C. Palazuelos, D. Pérez-García, M. Junge, Villanueva Díez, Ignacio   +9 more
core   +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

Operator space theory:a natural framework for bell inequalities

, 2009
Short (non-technical) versionIn this letter we show that the field of Operator Space Theory provides a general and powerful mathematical framework for arbitrary Bell inequalities, in particular regarding the scaling of their violation within quantum ...
Palazuelos Cabezón, Carlos, Junge, M., Palazuelos, C., Pérez García, David, Wolf, Michael, Perez-Garcia, D., Villanueva, I., Wolf, Michael Marc, Villanueva Díez, Ignacio   +8 more
core   +1 more source

Advanced therapy medicinal products (ATMPs) – An analysis of the global regulatory status

British Journal of Clinical Pharmacology, EarlyView.
Abstract Background A rapid progress in the development of advanced therapy medicinal products (ATMPs) has taken place over the past decades. The ATMPs hold great potential but face challenges in the clinical development and the regulatory process.
Allan Cramer, Freja Karuna Hemmingsen Sørup, Marie Lund, Tonny Studsgaard Petersen, Kristian Karstoft   +4 more
wiley   +1 more source

Operator Versions of Some Classical Inequalities

, 1997
Using the theory of connections developed in a paper by Kubo and Ando, operator versions of many classical inequalities are obtained. Finally, it is shown how abstract solidarities, an extension of the Kubo-Ando theory, can be used to obtain operator ...
Mond, B., Pecaric, Josip, Pečarić, J., Varošanec, S., S. Varošanec, Varosanec, Sanja, J. Šunde, Sunde, J., B. Mond, J. Pečarić   +9 more
core   +1 more source

Cost‐effectiveness of DPYD genotyping prior to fluoropyrimidine‐based treatment for colorectal cancer in Wales

British Journal of Clinical Pharmacology, EarlyView.
Abstract Background Regulatory guidance in the United Kingdom advises DPYD genotyping prior to fluoropyrimidine‐based treatment. This economic evaluation estimated the costs and outcomes associated with DPYD screening prior to prescribing fluoropyrimidines for colorectal cancer in Wales and also considers additional variants to those included in ...
Catrin O. Plumpton, Sian M. Morgan, Richard A. Adams, Samantha Cox, Angharad A. Rudkin, Megan Fealey, Craig Barrington, Michelle D. Wood, Dyfrig A. Hughes   +8 more
wiley   +1 more source