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Improvements of operator reverse AM-GM inequality involving positive linear maps [PDF]

open access: goldJournal of Inequalities and Applications, 2020
In this paper, we shall present some reverse arithmetic-geometric mean operator inequalities for unital positive linear maps. These inequalities improve some corresponding results due to Xue (J. Inequal. Appl. 2017:283, 2017).
Shazia Karim   +2 more
doaj   +2 more sources

Opial type inequalities for linear differential operators [PDF]

open access: bronzeMathematical Inequalities & Applications, 1998
In the present paper, the author has given various \(L_p\) form Opial type inequalities for a linear differential operator \(L\), involving its related initial value problem solution \(y\), \(Ly\), the associated Green's function \(H\) and initial conditions points \(x_0\in\mathbb{R}\).
George A. Anastassiou
openalex   +3 more sources

A note on the theorem on differential inequalities [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2005
It is proved that if a linear operator $\ell:C([a,b];\mathbb{R})\rightarrow L([a,b];\mathbb{R})$ is nonpositive and for the initial value problem $$u''(t)=\ell(u)(t)+q(t),\quad u(a)=c_1,\quad u'(a)=c_2 $$ the theorem on differential inequalities is valid,
H. Stepankova
doaj   +3 more sources

Reverse inequalities for the numerical radius of linear operators in Hilbert spaces [PDF]

open access: diamond, 2006
Some elementary inequalities providing upper bounds for the difference of the norm and the numerical radius of a bounded linear operator on Hilbert spaces under appropriate conditions are ...
Sever S Dragomir
openalex   +4 more sources

On integral inequalities associated with a linear operator equation [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1984
In this paper we apply control theoretic concepts to formulate and solve a generalized problem for the determination of best possible constants in integral inequalities. We investigate the problem of existence of functions for which the best constant is attained, and also the conditions satisfied by these functions.
M. B. Subrahmanyam
openalex   +2 more sources

Gaussian processes with linear operator inequality constraints [PDF]

open access: green, 2019
Published in JMLR: http://jmlr.org/papers/volume20/19-065/19-065 ...
Christian Agrell
openalex   +5 more sources

Sector operator inequalities involving positive linear maps

open access: goldJournal of Inequalities and Applications
In this note, we prove the pth power ( p ≥ 2 $p\geq 2$ ) of two new sector operator inequalities for positive linear maps which are due to Bedrani et al. (Positivity 25:1601-1629, 2021) and Nasiri (Filomat 38:3429-3438, 2024), respectively.
Jiqin Chen   +3 more
doaj   +2 more sources

Optimal exponents for Hardy–Littlewood inequalities for m-linear operators [PDF]

open access: greenLinear Algebra and its Applications, 2017
20 ...
Richard M. Aron   +3 more
openalex   +4 more sources

Bargmann-Type Inequality for Half-Linear Differential Operators

open access: goldJournal of Inequalities and Applications, 2009
By means of the Riccati technique, the authors obtain a Bargmann-type necessary condition for the existence of a nontrivial solution of the following perturbed half-linear Euler differential equation with at least \((n+1)\) zero points in \((0,\infty )\): \[ (\Phi(x^{\prime}))^{\prime}+[\gamma/t^{p}+c(t)]\Phi(x)=0, \] where \(\Phi (x):=|x|^{p - 2}x, p ...
Gabriella Bognár, Ondřej Došlý
  +7 more sources

Opial Type Integral Inequalities for Widder Derivatives and Linear Differential Operators

open access: greenInternational Journal of Analysis and Applications, 2015
In this paper we establish Opial type integral inequalities for Widder derivatives and linear di_erential operator. Also, for applications we construct some related inequalities as special cases.
Ghulam Farid, Josip Pecaric
doaj   +3 more sources

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