Real Applied Algebraic Geometry

TU Berlin, September 19/20, 2019


This is a workshop that is mainly funded by the Einstein Foundation. The workshop is also supported by TU Berlin and MPI for Mathematics in the Sciences in Leipzig.

The workshop takes place in room MA 041 at the Department of Mathematics of TU Berlin.



If you are planning to attend this workshop, please register by sending an e-mail to Antje Schulz ( To help us smooth out the organization, please use the subject line 'Registration RAAG' for your e-mail.


The abstracts can be found here.

Thursday, September 19
09:00-09:30 Registration and Welcome
09:30-10:15 Joao Gouveia Phaseless rank, semidefinite lifts and amoebas
10:15-10:45 Coffee Break Room MA 315
10:45-11:30 Martin Helsø Rational quartic spectrahedra
11:30-12:15 Boulos el Hilany Describing the Jelonek set of a polynomial map via Newton polytopes
12:15-14:15 Lunch Break
14:15-15:00 Anna Seigal Tensors under congruence action
15:00-15:30 Coffee Break Room MA 315
15:30-16:15 Khazhgali Kozhasov Chebyshev polynomials and best rank-one approximation ratio
16:15-17:00 Kaie Kubjas Mathematics of 3D Genome Reconstruction in Diploid Organsisms
Friday, September 20
09:30-10:15 Frank Lutz Geometry and Topology Matter in Materials
10:15-10:45 Coffee Break Room MA 315
10:45-11:30 Matilde Manzaroli Classification of real algebraic curves in real minimal del Pezzo surfaces
11:30-12:15 Claus Scheiderer On the semidefinite extension degree of convex sets
12:15-14:15 Lunch Break
14:15-15:00 Alexander Heaton An SOS counterexample to an inequality of symmetric functions
15:00-15:30 Coffee Break Room MA 315
15:30-16:15 Kristin Shaw Towards the existence of maximal hypersurfaces in toric varieties
16:15-17:00 Petter Brändén Lorentzian polynomials