Seminar of Algebraic Geometry - Wednesday 23 October 2019, at 16:00, SISSA (Matteo Gallet)

[ICTP Math Section]

SEMINAR OF ALGEBRAIC GEOMETRY


Venue: SISSA, Boris Dubrovin Lecture room (A-136)

Wednesday 23 October, at 16:00


Speaker: Matteo Gallet (SISSA)



Title: Flexible octahedra via the moduli space of stable rational curves


Abstract: Cauchy proved that every convex polyhedron is rigid, in the 
sense that it cannot move preserving the shape of its faces. At the 
beginning of the XX century, Bricard discovered three families of 
flexible self-intersecting octahedra, and these are the only possible 
flexible ones. With the aid of the moduli space of stable rational 
curves, we attempt to re-prove the classical classification via a 
technique that may be applicable also to other situations. This is joint 
work with Georg Grasegger, Jan Legersky, and Josef Schicho.

http://users.ictp.it/~arincon/AGS.html


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