Geometric Structures - Gal Binyamini

Miruna - Stefana Sorea mirunastefana.sorea at
Sun Nov 29 16:34:26 CET 2020

Dear All,

this is to announce the next seminar from the series "Geometric

Speaker: GAL BINYAMINI [1] ( [1]Weizmann Institute of Science [1]) [1]

Title: Cylindrical decompositions in real and complex geometry

Time: December 1, 2020, 3:00 pm (Rome Time) ----->Please note the
exceptional change of hour.<----- 

Venue: from remote only, on zoom at this link
Passcode: geometry


The decomposition of a set into "cylinders" in one of the fundamental
tools of semi-algebraic geometry (as well as subanalytic geometry and
o-minimal geometry). Defined by means of intervals, these cylinders are
an essentially real-geometric construct. 
In a recent paper wit Novikov we introduce a notion of "complex cells",
that form a complexification of real cylinders. It turns out that such
complex cells admit a rich hyperbolic geometry, which is not directly
visible in their real counterparts. I will sketch some of this theory,
and how it can be used to prove some new results in real geometry (for
instance a sharpening of the Yomdin-Gromov lemma). 

More information can be found here: [3] 

Everyone is welcome! 

Miruna-Stefana Sorea 

_Miruna-Stefana Sorea_
_Postdoctoral Researcher_
_Scuola Internazionale Superiore di Studi Avanzati (SISSA), Trieste,


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