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Active-set Algorithmic Frameworks for Sparse Optimization

In the context of sparse optimization problems, being able to quickly identify the active set (i.e. the subset of zero components in an optimal solution) is becoming a crucial task as it can considera...

Metodi FEM-BEM di tipo spazio-tempo per la risoluzione di problemi di propagazione di onde in domini illimitati

In questo seminario presenterò problemi di propagazione di onde in domini illimitati bi e tridimensionali. Per la risoluzione di tali problemi mediante metodi FEM, considererò una condizione non rifle...

Limit Theorems and Random Fractal Curves in Statistical Mechanics

Rigorous statistical mechanics deals with stochastic systems that have a large number of components and for which geometry often plays an important role. The main goal is to understand their average b...

On time correlations for last passage percolation models

We study time correlations of last passage percolation (LPP), a model in the Kardar-Parisi-Zhang universality class, with three different geometries: step, flat and stationary. We prove the convergenc...

On time correlations for last passage percolation models

Abstract: We study time correlations of last passage percolation (LPP), a model in the Kardar-Parisi-Zhang universality class, with three different geometries: step, flat and stationary. We prove the ...

A model for a network of conveyor belts with discontinuous speed and capacity

We introduce a macroscopic model for a network of conveyor belts with various speeds and capacities. In a different way from traffic flow models, the product densities are forced to move with a consta...

Domain and wall pattern in thin-film ferromagnets

Abstract: The magnetization of a ferromagnet is known to form patterns in order to minimize the sum of exchange and stray-field energy (even in the absence of a strong crystalline anisotropy, as in so...

Computational non-commutative geometry for materials science: The example of multilayer 2D materials

Abstract: Descrizione:Computational non-commutative geometry for materials science: The example of multilayer 2D materials After recalling the standard mathematical formalism used to model disordered ...

Adaptive Filtered Schemes for first order Hamilton-Jacobi equations

The accurate numerical solution of Hamilton-Jacobi equations is a challenging topic of growing importance in many fields of application but due to the lack of regularity of viscosity solutions the con...