We present existence of solitary waves solutions for elliptic systems in dimension two with nonlinearities which exhibit supercritical growth with respect to the critical growth prescribed by the Pohozaev-Trudinger-Moser inequality. We obtain…
Categoria evento: Seminars
Piecewise contractions defined by iterated function systems – Arnaldo Nogueira (Universita’ di Aix Marseille )
We are interested in the asymptotical behavior of piecewise contractions of the interval (PCs). A map $f:[0,1)\to [0,1)$ is an {\it $n$ interval PC} if there exists a partition of the interval $[0,1)$ into subintervals $J_1,\ldots,J_n$ such that…
Metric theory for a new family of continued fraction expansions – Niels Langveld (TU Delft)
The family of flipped expansions and the family of 2-expansions is combined to make a new family of continued fraction expansions we will call flipped 2-expansions. It is shown that there is only one flipped continued fraction expansion map that…
On Kurzweil’s 0-1 Law in Inhomogeneous Diophantine Approximation – Dong Han Kim (Dongguk University)
We give a sufficient and necessary condition such that for almost all $s\in{\mathbb R}$ $$ \ \theta-s\<\psi(n)\qquad\text{for infinitely many}\ n\in{\mathbb N}, $$ where $\theta$ is fixed and $\psi(n)$ is a positive, non-increasing sequence. This…
Misura di Hausdorff di alcune condizioni diofantee e superfici di traslazione. – Luca Marchese (Paris 13)
We consider two dynamical problems for translation surfaces, both related to diophantine approximations: one is the study of the asymptotic amplitude of excursions at infinity of a Teichmuller geodesic in parameter space, the other is the study of…
Decomposition of quantum representations into irreducible factors – Julien Korinman (Université de Grenoble)
I will define two families of representations of the mapping class group of surfaces, namely the Weil and Reshetikhin-Turaev representations. Then I will state some results concernings the (in)finiteness of their image and their decomposition into…
Funzioni lisce generalizzate – Paolo Giordano (University of Wien)
Venue Sala Riunioni (Dip. Matematica). Abstract…
Instanton-Symplectic homology and integral Dehn Surgery – Guillem Cazassus (Institut de Mathématiques de Toulouse)
Motivated by the Atiyah-Floer conjecture, Manolescu and Woodward defined an invariant for closed oriented 3-manifolds called “Instanton-Symplectic homology”. I will explain how they fit into the framework of a “Floer Field Theory” developped by…
Continuity of core entropy of quadratic polynomials – Giulio Tiozzo (Yale University)
The core entropy of polynomials, recently introduced by W. Thurston, is a dynamical invariant which can be defined purely in combinatorial terms, and provides a useful tool to study parameter spaces of polynomials. The theory of core entropy extends…
Infinitesimal Hilbert problem – Sergei Yakovenko (Weizmann Institute and Universita di Pisa)
The infinitesimal Hilbert problem addresses limit cycles of planar polynomial vector field, which appear by a small non-conservative perturbation of an integrable (Hamiltonian) system. Their number is closely related to the number of algebraic level…