The generalized Kummer variety $K_n$ of an abelian surface $A$ is the fibre of the natural map $\mathsf{Hilb}^{n+1}A\to \mathsf{Sym}^{n+1}A\to A$. Debarre described a Lagrangian fibration on $K_n$ whose fibres are the kernels of $\mathsf{Jac}C\to…
Eventi
Chaos maps and study of the Geminids meteor shower – Ariane Courtot (Observatoire de Paris)
Meteor showers originate from a parent body, an asteroid or a comet. This parent body ejects several meteroids, forming a meteoroid stream, which will then meet the Earth. From Earth, several meteors can then be observed. To prove they form a shower, we then need to prove whether they come from the same source.…
Geometry of vertex operator algebras on moduli of curves – Nicola Tarasca (Virginia Commonwealth University)
The physically-inspired theory of conformal blocks allows one to construct vector bundles on moduli spaces of curves with remarkable geometric and combinatorial properties. This theory uses as input the representations of some non-commutative…
Non-uniqueness of Leray solutions of the forced Navier-Stokes equations – Elia Bruè (Institute for Advanced Study (Princeton))
In his seminal work, Leray demonstrated the existence of global weak solutions, with nonincreasing energy, to the Navier-Stokes equations in three dimensions. In this talk, we exhibit two distinct Leray solutions with zero initial velocity and…
Geometric Representation Theory
Further information is available on the event page.…
Existence Proofs for Pseudomonotone Parabolic Problems – Michael Růžička (Department of Applied Mathematics, University of Freiburg)
In the talk we discuss several existence proofs for nonlinear parabolic problems which contain a pseudomonotone operator. A new notion of Bochner pseudomonotonicity is introduced and applied. We show that this technique also allows for convergence…
Isoperimetric Problems
Further information is available on the event page on the Indico platform.…
Workshop “Theory, models and simulations in Celestial Mechanics”
The workshop “Theory, models and simulations in Celestial Mechanics”, organized within the project MIUR-PRIN 20178CJA2B titled “New frontiers of Celestial Mechanics: theory and applications”, will take place both in presence at the Department of Mathematics of the University of Pisa (Italy)…
New Perspectives on Hyperkähler Manifolds – A Celebration of Dimitri Markushevich’s (60+2)nd Birthday
Further information is available on the event page on the Indico platform.…
Constructing homogeneous Einstein metrics – Diego Conti (Università degli Studi di Milano-Bicocca)
A pseudo-Riemannian metric is said to be Einstein if its Ricci tensor is a constant multiple of the metric. Bi-invariant metrics on simple Lie groups are examples; more generally, there are several known constructions to obtain homogeneous Einstein metrics, i.e. invariant under the transitive action of a group.…