Results 21 to 30 of about 76 (34)
Inequalities For Numerical Radius And The Spectral Norm Of Hilbert Space Operators [PDF]
, 2013 Let (H,< .,. >) be a complex Hilbert space and B(H) denote the C-algebra of all bounded linear operators on H. In this paper we establishinequalities for numerical radius and the spectral norm of Hilbert spaceoperators , from the previous ...
Al-Hawari, M.
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Inequalities for Quantum f-Divergence of Trace Class Operators in Hilbert Spaces [PDF]
, 2015 Some inequalities for quantum f-divergence of trace class operators in Hilbert spaces are obtained. It is shown that for normalised convex functions it is nonnegative.
Dragomir, Sever S
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Bounding the Čebyšev function for a differentiable function whose derivative is h or λ-convex in absolute value and applications [PDF]
, 2016 Some bounds for the Čebyšev functional of a differentiable function whose derivative is h or λ-convex in absolute value and applications for functions of selfadjoint operators in Hilbert spaces via the spectral representation theorem are ...
Dragomir, Sever S
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Spear operators between Banach spaces
, 2017 The aim of this manuscript is to study \emph{spear operators}: bounded linear operators $G$ between Banach spaces $X$ and $Y$ satisfying that for every other bounded linear operator $T:X\longrightarrow Y$ there exists a modulus-one scalar $\omega$ such ...
Kadets, Vladimir +3 more
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Operator upper bounds for Davis-Choi-Jensen's difference in Hilbert spaces [PDF]
In this paper we obtain several operator inequalities providing upper bounds for the Davis-Choi-Jensen's Difference Ph (f (A)) - f (Ph (A)) for any convex function f : I → R, any selfadjoint operator A in H with the spectrum Sp (A) ⊂ I and any linear ...
Dragomir Silvestru Sever
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New counterexamples on Ritt operators, sectorial operators and R-boundedness
, 2018 Let $\mathcal D$ be a Schauder decomposition on some Banach space $X$. We prove that if $\mathcal D$ is not $R$-Schauder, then there exists a Ritt operator $T\in B(X)$ which is a multiplier with respect to $\mathcal D$, such that the set $\{T^n\, :\, n ...
Arnold, Loris, Merdy, Christian Le
core
Extremely non-complex Banach spaces
Open Mathematics, 2011 Martín Miguel, Merí Javier
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Perturbation properties of some classes of operators [PDF]
, 2008 Schmoeger, Christoph
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A new approach to $\gamma$-bounded representations
Let $X$ be a Banach space, let $(\Omega,\mu)$ be a $\sigma$-finite measure space and let $A,B\colon\Omega\to B(X)$ be strongly measurable $\gamma$-bounded functions.
Merdy, Christian Le
core
Inequalities for quantum f-divergence of convex functions and matrices [PDF]
, 2018 Dragomir, Sever S
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