Geometric Structures - Boulos El Hilany - June 15 - 4:15 pm (Rome Time)

[Miruna - Stefana Sorea]

Dear All, 

This is to announce the next seminar from the series "Geometric
Structures".

Speaker: BOULOS EL HILANY [1] ( [1]Johann Radon Institute for
Computational and Applied Mathematics, Linz [1]) [1] 

Title:      Computing efficiently the non-properness set of polynomial
maps on the plane 

Time:      June 15, 2021, 4:15 pm (Rome Time)  

Venue:    from remote only, on zoom at this link 
https://sissa-it.zoom.us/j/85675591787?pwd=TUo2VXpmcEhOU1paRzBXUWp2MU1odz09
[2]
Passcode: geometry

Abstract:  

I will present new mathematical and computational tools to develop a
complete and efficient algorithm for computing the set of non-properness
of polynomial maps in the complex (and real) plane. In particular, this
is a subset of the plane where a dominant polynomial map as above is not
proper. The algorithm takes into account the sparsity of polynomials,
and the genericness of the coefficients as it depends on their Newton
polytopes. As a byproduct it provides a finer representation of the set
of non-properness as a union of algebraic or semi-algebraic sets, that
correspond to edges of the Newton polytopes, which is of independent
interest. This is a joint work with Elias Tsigaridas. 

More information can be found here:
https://sites.google.com/view/geometric-structures/ [3] 

Everyone is welcome! 
-- 
_Miruna-Stefana Sorea_
_Postdoctoral Researcher_
_Scuola Internazionale Superiore di Studi Avanzati (SISSA), Trieste,
Italy_
_HTTPS://SITES.GOOGLE.COM/VIEW/MIRUNASTEFANASOREA/_ 

Links:
------
[1]
https://www.google.com/url?q=https%3A%2F%2Fboulos-elhilany.com%2F&sa=D&sntz=1&usg=AFQjCNGr3Iaw6MjIqXoXzlCFVtw3_g5tvg
[2]
https://sissa-it.zoom.us/j/85675591787?pwd=TUo2VXpmcEhOU1paRzBXUWp2MU1odz09
[3] https://sites.google.com/view/geometric-structures/