Results 61 to 70 of about 3,159 (156)

New Inequalities of Weaving K-Frames in Subspaces

Mathematics, 2019
In the present paper, we obtain some new inequalities for weaving K-frames in subspaces based on the operator methods. The inequalities are associated with a sequence of bounded complex numbers and a parameter λ ∈ R .
Zhong-Qi Xiang
doaj   +1 more source

New Results on Passivity Analysis for Uncertain Neural Networks with Time-Varying Delay

Abstract and Applied Analysis, 2014
The paper investigates the stability and passivity analysis problems for a class of uncertain neural networks with time-delay via delta operator approach.
Xueying Shao, Qing Lu, Hamid Reza Karimi, Jin Zhu   +3 more
doaj   +1 more source

Some operator inequalities for operator means and positive linear maps

Filomat, 2019
In this note, some operator inequalities for operator means and positive linear maps are investigated. The conclusion based on operator means is presented as follows: Let ? : B(H) ? B(K) be a strictly positive unital linear map and h-1 IH ? A ? h1IH and h-12 IH ? B ? h2IH for positive real numbers h1, h2 ? 1.
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Berezin number inequalities for operators

Concrete Operators, 2019
The Berezin transform à of an operator A, acting on the reproducing kernel Hilbert space ℋ = ℋ (Ω) over some (non-empty) set Ω, is defined by Ã(λ) = 〉Aǩ λ, ǩ λ〈 (λ ∈ Ω), where k⌢λ=kλ‖kλ‖${\mathord{\buildrel{\lower3pt\hbox{$\scriptscriptstyle\frown ...
Bakherad Mojtaba, Garayev Mubariz T.
doaj   +1 more source

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

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

Some Inequalities on Polynomials in the Complex Plane Concerning a Linear Differential Operator

Journal of Mathematics
In this paper, we consider new extremal problems in the uniform norm between a univariate complex polynomial and its associated reciprocal polynomial involving a generalized B-operator.
Mayanglambam Singhajit Singh, Madhav Prasad Poudel, Barchand Chanam   +2 more
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Classifying linear matrix inequalities via abstract operator systems

Linear Algebra and its Applications
We systematically study how properties of abstract operator systems help classifying linear matrix inequality definitions of sets. Our main focus is on polyhedral cones, the 3-dimensional Lorentz cone, where we can completely describe all defining linear matrix inequalities, and on the cone of positive semidefinite matrices.
Martin Berger, Tom Drescher, Tim Netzer
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Notes on some inequalities for linear operators [PDF]

Mathematische Annalen, 1952
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A second-order dynamical system for solving inverse quasi-variational inequalities and its application. [PDF]

PLoS One
Gan T, Khan VK, Ahmad MK, Cai QB.
europepmc   +1 more source