Results 11 to 20 of about 1,184,775 (281)

Finite difference schemes with monotone operators

open access: yesAdvances in Difference Equations, 2004
Several existence theorems are given for some second-order difference equations associated with maximal monotone operators in Hilbert spaces. Boundary conditions of monotone type are attached.
N. C. Apreutesei
doaj   +2 more sources

Around Operator Monotone Functions [PDF]

open access: yesIntegral Equations and Operator Theory, 2011
We show that the symmetrized product $AB+BA$ of two positive operators $A$ and $B$ is positive if and only if $f(A+B)\leq f(A)+f(B)$ for all non-negative operator monotone functions $f$ on $[0,\infty)$ and deduce an operator inequality. We also give a necessary and sufficient condition for that the composition $f\circ g$ of an operator convex function $
Moslehian, Mohammad Sal, Najafi, Hamed
openaire   +3 more sources

Monotone Operators Without Enlargements [PDF]

open access: yes, 2013
26 ...
Borwein, Jonathan M.   +2 more
openaire   +3 more sources

Representable Monotone Operators and Limits of Sequences of Maximal Monotone Operators [PDF]

open access: yesSet-Valued and Variational Analysis, 2011
We show that the lower limit of a sequence of maximal monotone operators on a reflexive Banach space is a representable monotone operator. As a consequence, we obtain that the variational sum of maximal monotone operators and the variational composition of a maximal monotone operator with a linear continuous operator are both representable monotone ...
García, Yboon, Lassonde, Marc
openaire   +2 more sources

ADMM for monotone operators: convergence analysis and rates [PDF]

open access: yesAdvances in Computational Mathematics, 2017
We propose in this paper a unifying scheme for several algorithms from the literature dedicated to the solving of monotone inclusion problems involving compositions with linear continuous operators in infinite dimensional Hilbert spaces.
R. Boț, E. R. Csetnek
semanticscholar   +1 more source

Weighted modular inequalities for monotone functions

open access: yesJournal of Inequalities and Applications, 1997
Weight characterizations of weighted modular inequalities for operators on the cone of monotone functions are given in terms of composition operators on arbitrary non-negative functions with changes in weights. The results extend to modular inequalities,
Heinig HP, Kufner A, Drábek P
doaj   +2 more sources

Newton-like Inertial Dynamics and Proximal Algorithms Governed by Maximally Monotone Operators

open access: yesSIAM Journal on Optimization, 2020
The introduction of the Hessian damping in the continuous version of Nesterov's accelerated gradient method provides, by temporal discretization, fast proximal gradient algorithms where the oscilla...
H. Attouch, S. László
semanticscholar   +1 more source

Cyclically monotone linear operators [PDF]

open access: yesProceedings of the American Mathematical Society, 1976
A linear operator on a complex Hilbert space H \mathcal {H} is called n n -cyclically monotone if for each sequence x 0 , x 1 , … , x
openaire   +1 more source

Symbolic computation with monotone operators [PDF]

open access: yesACM Communications in Computer Algebra, 2017
The Fenchel conjugate , f * , and the subdifferential , ∂ f , of a function f are two objects of fundamental importance in convex analysis.
Lauster, Florian   +2 more
openaire   +4 more sources

Forward–backward splitting algorithm for fixed point problems and zeros of the sum of monotone operators

open access: yesArabian Journal of Mathematics, 2019
In this paper, we construct a forward–backward splitting algorithm for approximating a zero of the sum of an $$\alpha $$ α -inverse strongly monotone operator and a maximal monotone operator.
V. Dadashi, M. Postolache
semanticscholar   +1 more source

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