Algebra and geometry seminar 11-12-2020

[Francesco Galuppi]

Dear colleagues,

this is to advertise the weekly seminar of the Algebra and Geometry 
group of the university of Trieste. On Friday, December 11th at 10:30, 
Alex Casarotti (University of Ferrara) will talk about"Tangential weak 
defectiveness and generic identifiability".
Abstract:  We study the uniqueness of decomposition of general tensors T 
as a sum of tensors of rank 1. This is done by extending the theory 
developed in a previous work by Mella to the framework of 
non-tangentially-weak-defective varieties. In particular, the 
infinitesimal behaviour of the tangential contact locus is linked to the 
birational geometry of a weakly defective but not tangentially defective 
variety. In this way it is possible to prove the non generic 
identifiability of infinitely many partially symmetric tensors.

The seminar will take place online. Click here 
<https://us02web.zoom.us/j/86702228099> for the Zoom link.

You are welcome to extend the invitation to anyone interested.

Best,
Francesco