Top-level heading

Neuronal network structure inference by simulation

Abstract: Neurophysiologists are nowadays able to record from a large number of extracellular electrodes and to extract, from the raw data, the sequences of action potentials or spikes generated by ma...

Correlation energy of an electron gas in the mean-field approximation

The correlation energy of a high density fermionic Coulomb gas, called Jellium, is expected to be given by the Gell-Mann Brueckner formula. I will discuss an analogue of this formula for the mean-fiel...

GIORNATA ARITMETICA (organizzatore F. Pellarin)

Per titoli e sommari si veda la pagina web https://sites.google.com/uniroma1.it/an-arithmetic-day/home-page...

On the vanishing discount approximation for compactly supported perturbations of periodic Hamiltonians

We consider the discounted approximation of the critical Hamilton-Jacobi equation set on the real line associated with the Hamiltonian G(x,p):=H(x,p)-V(x), where H is a 1-periodic Tonelli Hamiltonian ...

Semipositive tangent bundles and canonical extensions

Given a projective complex manifold M with an ample polarization there is canonically associated an affine bundle Z over M. The question I will discuss is under which circumstances Z is an affine vari...

Spectral gaps, entropy production and log Sobolev inequalities for some many particle quantum Markov semigroups

We present a study of spectral gaps, entropy production and log Sobolev inequalities for some Lindblad equations modeling systems of N particles interacting pairwise.  The bounds obtained, some o...

On the low density Fermi gas in three dimensions

In recent decades, the study of many-body systems has been an active area of research in both physics and mathematics. In this talk, we will consider a system of N spin 1/2 interacting fermions confin...

Deformations of singular Fano and Calabi-Yau varieties

This talk will describe recent joint work with Radu Laza on deformations of generalized Fano and Calabi-Yau varieties, i.e. singular versions of complex manifolds whose curvature is either positive or...

A new algorithm for surface reconstruction using a semi-Lagrangian scheme with local interpolator

We propose a level set method to reconstruct unknown surfaces from a point cloud, without assuming that the connections between points are known. The formulation of the problem follows the variational...

From the Matsumoto Yor observation to stationary measures for a discrete KdV model

Abstract: From the Matsumoto Yor observation to stationary measures for a discrete KdV model Let F(x,y)=(u,v) from R2 into itself such that F∘F(x,y)=(x,y). The discrete Korteweg-de Vries model associa...

Hyperbolicity and fundamental groups of complex quasi-projective varieties

The strong Green-Griffiths-Lang conjecture predicts that a complex quasi-projective variety X is of log general type if and only if there is a proper Zariski closed subset Z of X such that all the hol...