– Europe/Lisbon — Online
Juan Muñoz-Echániz, Stony Brook University.
Seminars, for informal dissemination of research results, exploratory work by research teams, outreach activities, etc., constitute the simplest form of meetings at a Mathematics research centre.
CAMGSD has recorded the calendar of its seminars for a long time, this page serving both as a means of public announcement of forthcoming activities but also as a historic record.
For a full search interface see the Mathematics Department seminar page.
Juan Muñoz-Echániz, Stony Brook University.
Room P3.10, Mathematics Building
Lisbon Interdisciplinary Mathematics
Maciej Kucharski, Instituto Superior Técnico, Universidade de Lisboa.
Room P4.35, Mathematics Building
Jonathan Luk, Stanford University.
Room P3.10, Mathematics Building
Lisbon WADE — Webinar in Analysis and Differential Equations
Francesco Bozzola, Instituto Superior Técnico, Universidade de Lisboa.
Some bounds in fractional spectral geometry for higher-order problems.
A classical result by Maz'ya states that it is possible to bound from below the bottom of the spectrum of the Dirichlet-Bilaplacian of a general open set $\Omega \subseteq \mathbb{R}^N$ in terms of its inradius (namely, the radius of the largest ball inscribed in $\Omega$), provided that $N=2,3$. In a couple of recent papers, Bianchi $\&$ Brasco obtained two novel fractional spectral inequalities linked to this object, extending some classical results. We heavily rely on the ideas and the techniques developed in the above mentioned works, to infer some new optimal spectral bounds for higher-order fractional biharmonic operators.
Based on a work in progress with Francesca Bianchi and Lorenzo Brasco.