The International Center for Mathematical Sciences – Sofia (ICMS-Sofia)

presents

Geometry Seminar of ICMS

09.07.2025 16:00, Sofia time

ICMS-Sofia, Room 403
Zoom: https://us02web.zoom.us/j/86186281353?pwd=6CARUygJaA3HiTNAt3norZQRFt8fIL.1

Around combinatorial Viro’s patchworking

Arthur Renaudineau

University of Lille

Abstract:

This talk will be a survey on Viro’s combinatorial patchworking: a powerful method to construct real algebraic varieties.
We will present the construction, give an idea of the proof, make the link with tropical geometry and then prove recent bounds on the Betti numbers of the real part.
We will also see how the tropical perspective permits to generalize the initial construction.