Top-level heading

Revisiting chaos expansions and Wick products

Recently, the interest in the structure of cumulants and Wick products for non-Gaussian variables has been revived, since they both play important roles in M. Hairer's theory of regularity structures....

Small noise asymptotics for stochastic Allen-Cahn equations in finite volume

We consider lattice approximations of the Allen-Cahn equation on the torus perturbed by small space-time white noise and discuss metastable transition times between the two stable phases....

Effects of prior selection in nonparametric Bayes problems

We consider an arbitrary family of stochastically ordered distribution functions dependent on parameters from an interval in the real line. We compare distribution functions and moments of random vari...

The physics of glasses form the viewpoint of theoretical physicists

Abstract: Glassy materials are characterized by being solid (for all practical purpose) at low temperature in absence of a sharp transition from the liquid phase to the solid state.  They are ubi...

Muscle synergies for motor control

Abstract: A fundamental challenge in neuroscience is understanding how the central nervous system (CNS) succeeds in coordinating the many degrees-of-freedom of the musculoskeletal system to control li...

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...

The Geometry and Mechanics of Growing Elastic Sheets

Abstract: Non uniform growth of thin sheets can lead to the formation of elaborate three-dimensional configurations and to induce non trivial shape transformations. In particular, complicated configur...

Propagation of Information across Collective Biological Systems

 Abstract: Collective decision-making in biological systems requires all individuals in the group to go through a behavioural change of state. During this transition, fast and robust transfer of ...

Critical Points, Multiple Testing and Point Source Detection for Cosmological Data

Abstract: Over the last two decades, Cosmology has experienced a sort of revolution, where a flood of data of unprecedented accuracy has become available by means of a number of different ground-based...

Bacterial fluids, a living example of “active matter”

Abstract: Understanding the individual and the macroscopic transport properties of motile micro-organisms like bacteria is a timely question relevant to many technological applications. This is for ex...

Approcci algebrici e combinatori all'integrazione di Lie

Dato un gruppo di Lie G con algebra di Lie g, la classica formula di Baker-Campbell-Hausdorff (BCH) permette di ricostruire la struttura di gruppo in un intorno dell'unità in termini dell'applicazione...

Equazione di Vlasov-Poisson e modelli cinetici di attrito

Inizialmente vengono presentati i principali recenti risultati ottenuti sull'equazione di Vlasov e Vlasov-Poisson, concernenti l'esistenza e unicità della soluzione globalmente nel tempo.Nella seconda...