A cork is a contractible Stein domain that gives arise to exotic pairs of 4-manifolds. The first example was found by Akbulut. It is known that any two exotic, simply-connected, closed 4-manifolds are related by a cork twist. We show that there are…
Eventi
Moduli of curves with principal and spin bundles: singularities and global geometry – Mattia Galeotti (Universite\’ “Pierre et Marie Curie”, Parigi)
Abstract: In a series of recent papers, Chiodo, Farkas and Ludwig carried out a deep analysis of the singular locus of the moduli space of stable (twisted) curves with an l-torsion line bundle. They showed that for l ≤ 6 and different from 5…
Il percorso per l’acquisizione dei 24CFU necessari per diventare insegnanti a Pisa – Pietro di Martino (Delegato del Rettore per la formazione insegnanti)
Il 10 agosto è stato pubblicato il D.M. 616/2017 che invita le Università ad organizzarsi per sviluppare e certificare percorsi…
A weak universality result for the parabolic Anderson model – Nicolas Perkowski (Humboldt-Universität zu Berlin)
We consider a class of nonlinear population models on a two-dimensional lattice which are influenced by a small random potential, and we show that on large temporal and spatial scales the population density is well described by the continuous…
Chemical reaction networks: deterministic and stochastic models – Daniele Cappelletti (University of Wisconsin – Madison)
Chemical reaction networks are mathematical models used in biochemistry, as well as in other fields. Specifically, the time evolution of a system of biochemical reactions are modelled either deterministically, by means of a system of ordinary…
Kodaira fibrations with small signature – Sönke Rollenske (Univ. Marburg (Germania) )
Kodaira fibrations are surfaces of general type with a non-isotrivial fibration, which are differentiable fibre bundles. First examples were constructed by Kodaira and Atiyah to show that the signature need not be multiplicative in fibre bundles. We…
Colloqui con Zanichelli – Irene Barbensi, Giulia Laffi (Zanichelli editore)
A seguito dell’incontro del 28 aprile sono organizzati due giorni di colloqui con Irene Barbensi e Giulia Laffi della redazione…
Introduction to interacting particle systems – Michel Nassif (ENS Rennes)
Interacting particle systems is a recently developed field in the theory of Markov processes with many applications: particle systems have been used to model phenomena ranging from traffic behaviour to spread of infection and tumour growth. We…
Averaging along irregular curves and regularization of ODEs – Remi Catellier (Université de Nice Sophia-Antipolis)
Paths of some stochastic processes such as fractional Brownian Motion have some amazing regularization properties. It is well known that in order to have uniqueness in differential systems such as dy_t = b(y_t) dt, b needs to be quite regular.…
Modellare, Quantificare, Immaginare: perché la matematica fa la differenza nel lavoro e in democrazia! – Umberto Sampieri (Amministratore Delegato MASAI Srl)
Cercherò di raccontare pescando nella mia esperienza personale e in quella di amici e colleghi perché gli anni spesi a…