Results 31 to 40 of about 130 (58)
Some inequalities for weighted and integral means of operator convex functions [PDF]
, 2020 Let f be an operator convex function on I and A, B ∈ SAI (H) , the convex set of selfadjoint operators with spectra in I.
Silvestru Sever Dragomir
core
Reverse Jensen’s type trace inequalities for convex functions of selfadjoint operators in Hilbert spaces [PDF]
, 2016 Some reverse Jensen’s type trace inequalities for convex functions of selfadjoint operators in Hilbert spaces are provided. Applications for some convex functions of interest and reverses of Hölder and Schwarz trace inequalities are also ...
Dragomir, Sever S.
core +1 more source
Inequalities of Lipschitz type for power series in Banach algebras [PDF]
, 2015 Let f(z) = Σn=0∞αnzn be a function defined by power series with complex coefficients and convergent on the open disk D(0,R)⊂ℂ, R>0. For any x,y∈????, a Banach algebra, with ‖x‖,‖y‖<R we show among others that‖f(y)-f(x)‖ ≤ ‖y-x‖∫01f\u27a(‖(1-t)x+ty‖)
Dragomir, Sever S.
core +1 more source
Extremely non-complex Banach spaces
Open Mathematics, 2011 Martín Miguel, Merí Javier
doaj +1 more source
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
Factorable bounded operators and Schwartz spaces
, 1974 Steven F. Bellenot
semanticscholar +1 more source