Sparse linear algebra is essential for a wide variety of scientific applications. The availability of highly parallel sparse solvers and preconditioners lies at the core of pretty much all multi-physics and multi-scale simulations. Technology is…
Eventi
Infinite entropy for transcendental entire functions – Anna Miriam Benini (Università di Parma)
Defining entropy on noncompact metric spaces is a tricky business, since there are several natural and nonequivalent generalizations of the usual notions of entropy for continuous maps on compact spaces. By defining entropy for transcendental maps…
Phase transitions for $\\phi^4_3$ – Trishen Gunaratnam (Université de Genève)
In this talk I will discuss recent results obtained in joint work with Ajay Chandra (Imperial) and Hendrik Weber (Bath) about the large-scale behaviour of the $\phi^4_3$ Euclidean field theory. In particular, I will discuss a surface order large…
A tensor method for semi-supervised learning – Francesco Tudisco (GSSI)
Semi-supervised learning is the problem of finding clusters in a graph or a point-clould dataset where we are given “few” initial input labels. Label Spreading (LS) is a standard technique for this problem, which can be interpreted as a diffusion…
A simple system presenting Noise Induced Order – Isaia Nisoli (Universidade Federal de Rio de Janeiro)
In this talk I will present a family of one dimensional systems with random additive noise such that, as the noise size increases, the Lyapunov exponent of the stationary measure transitions from positive to negative. This phenomena is known in…
Chaotic motion in the breathing circle billiard – Stefano Marò (Università di Pisa)
We consider the free motion of a point particle inside a circular billiard with periodically moving boundary, with the assumption that the collisions of the particle with the boundary are elastic so that the energy of the particle is not preserved.…
Birational geometry of the intermediate Jacobian fibration – Giulia Saccà (Columbia University)
I will start by presenting some applications of the minimal model program to the construction of symplectic compactifications of certain Lagrangian fibrations (integrable systems) of geometric origin. One such case is that of the intermediate…
On a quadratic polynomial attached to simple Lie algebras – Paolo Papi (Sapienza Università di Roma)
We will introduce a polynomial $p_{\mathfrak{g}}(k)$ attached to a simple Lie algebra $\mathfrak{g}$. It appears in several different contexts: the minimal quantization of the adjoint representation of Drinfeld’s Yangian $\mathsf{Y}(\mathfrak{g})$;…
Quando la matematica è un’opinone – dalle equazioni ai modelli di profitto – Valentina Coco (Senior Controller presso Sulzer Chemtech AG- Zurich, fondatrice di Coco Consulting and Coaching)
Valentina Coco ha iniziato la sua carriera nell’analisi dei dati, per la multinazionale Procter and Gamble. Ha sempre amato i…
Averaging principle and random growth – Ruojun Huang (Scuola Normale Superiore)
Motivated by questions in reinforced random walks and the asymptotic shape of their range, we study a simplified model of random growth in the continuum. In this model, random sets grow by increment of small bumps at the boundary, driven by a…