Results 41 to 50 of about 160,977 (322)

On Some Numerical Radius Inequalities Involving Generalized Aluthge Transform

open access: yesJournal of Function Spaces, 2022
Let S be any bounded linear operator defined on a complex Hilbert space H. In this paper, we present some numerical radius inequalities involving the generalized Aluthge transform to attain upper bounds for numerical radius.
Javariya Hyder   +3 more
doaj   +1 more source

Analytic Normalized Solutions of 2D Fractional Saint-Venant Equations of a Complex Variable

open access: yesJournal of Function Spaces, 2021
Saint-Venant equations describe the flow below a pressure surface in a fluid. We aim to generalize this class of equations using fractional calculus of a complex variable.
Najla M. Alarifi, Rabha W. Ibrahim
doaj   +1 more source

On Multivalent Analytic Functions Considered by a Multi-Arbitrary Differential Operator in a Complex Domain

open access: yesAxioms, 2021
(1) Background: There is an increasing amount of information in complex domains, which necessitates the development of various kinds of operators, such as differential, integral, and linear convolution operators.
Najla M. Alarifi, Rabha W. Ibrahim
doaj   +1 more source

Incremental closure for systems of two variables per inequality [PDF]

open access: yes, 2018
Subclasses of linear inequalities where each inequality has at most two vari- ables are popular in abstract interpretation and model checking, because they strike a balance between what can be described and what can be efficiently computed.
Howe, J. M., King, A., Simon, A.
core   +2 more sources

The Furuta Inequality and an Operator Equation for Linear Operators

open access: yesPublications of the Research Institute for Mathematical Sciences, 1999
We show that a special form of the Futura inequality is equivalent to an operator equation H^{\frac{p-2rn}{2(n+1)}} T (H^{\frac{p+2r}{n_+1}} T)^n H^{\frac{p-2_rn}{2(n+1)}} = K^p .
openaire   +2 more sources

Testing A Personalized Approach to Chronic Low Back Pain: A Randomized Controlled Trial in Older Veterans

open access: yesArthritis Care &Research, Accepted Article.
Objective We aimed to test the efficacy of personalized treatment of older Veterans with chronic low back pain (CLBP) delivered by Aging Back Clinics (ABC) as compared with usual care (UC). Methods Two hundred ninety‐nine Veterans age 65‐89 with CLBP from 3 VA medical centers underwent baseline testing, randomization to ABC or UC and 12 months follow ...
Debra K. Weiner   +9 more
wiley   +1 more source

More power vector bounds for operator pairs in Hilbert spaces with applications

open access: yesJournal of Inequalities and Applications
This paper investigates power vector inequalities for bounded linear operator pairs ( B , C ) $(B,C)$ in a Hilbert space H $\mathcal{H}$ . By leveraging vector inequalities derived by the second author for inner products and norms, we establish various ...
Najla Altwaijry   +2 more
doaj   +1 more source

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Current Tracking Adaptive Control of Brushless DC Motors

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García   +3 more
wiley   +1 more source

Some Inequalities for Certain p-Valent Functions Connected with the Combination Binomial Series and Confluent Hypergeometric Function

open access: yesAxioms, 2022
The present paper deals with a new differential operator denoted by Fp,tδ,n,b,c,m,β, whose certain properties are deduced by using well-known earlier studies regarding differential inequalities and the Caratheodory function.
Sheza M. El-Deeb, Adriana Cătaş
doaj   +1 more source

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