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133 papers · 1 filter
Correlators of supersymmetric Wilson loops at weak and strong coupling
Antonio Bassetto, Luca Griguolo, Fabrizio Pucci +3
We continue our study of the correlators of a recently discovered family of BPS Wilson loops in N=4 supersymmetric U(N) Yang-Mills theory. We perform explicit computations at weak…
Parallel Factorizations in Numerical Analysis
Pierluigi Amodio, Luigi Brugnano
In this paper we review the parallel solution of sparse linear systems, usually deriving by the discretization of ODE-IVPs or ODE-BVPs. The approach is based on the concept of para…
Iterative solution of piecewise linear systems for the numerical solution of obstacle problems
Luigi Brugnano, Alessandra Sestini
We investigate the use of piecewise linear systems, whose coefficient matrix is a piecewise constant function of the solution itself. Such systems arise, for example, from the nume…
Coupling Photosphere and Corona: Linear and Turbulent Regimes
A. Verdini, R. Grappin, M. Velli
In a recent work Grappin et al. [1] have shown that low- frequency movements can be transmitted from one footpoint to the other along a magnetic loop, thus mimicking a friction eff…
Wilson loop in 2d noncommutative gauge theories
Paolo Valtancoli
We reconsider the perturbative expansion of the Wilson loop in 2d noncommutative gauge theories, using an improved integration method. For the class of maximally crossed diagrams i…
Muon-induced backgrounds in the CUORICINO experiment
E. Andreotti, C. Arnaboldi, F. T. Avignone +68
To better understand the contribution of cosmic ray muons to the CUORICINO background, 10 plastic scintillator detectors were installed at the CUORICINO site and operated during th…