59 citations · 89 across the 14 of their papers we have counts for
5 papers · 1 filter
A greedy reconstruction algorithm for the identification of spin distribution
S. Buchwald, G. Ciaramella, J. Salomon +1
We propose a greedy reconstruction algorithm to find the probability distribution of a parameter characterizing an inhomogeneous spin ensemble in Nuclear Magnetic Resonace. The ide…
Nonlinear optimized Schwarz preconditioner for elliptic optimal control problems
Gabriele Ciaramella, Felix Kwok, Georg Müller
We introduce a domain decomposition-based nonlinear preconditioned iteration for solving nonlinear, nonsmooth elliptic optimal control problems, with a nonlinear reaction term, $L^…
An overlapping waveform-relaxation preconditioner for economic optimal control problems with state constraints
Gabriele Ciaramella, Luca Mechelli
In this work, a class of parabolic economic optimal control problems is considered. These problems are characterized by pointwise state constraints regularized by a parameter, whic…
On the effect of boundary conditions on the scalability of Schwarz methods
Gabriele Ciaramella, Luca Mechelli
In contrast with classical Schwarz theory, recent results have shown that for special domain geometries, one-level Schwarz methods can be scalable. This property has been proved fo…
On the asymptotic optimality of spectral coarse spaces
Gabriele Ciaramella, Tommaso Vanzan
This paper is concerned with the asymptotic optimality of spectral coarse spaces for two-level iterative methods. Spectral coarse spaces, namely coarse spaces obtained as the span…