TU Berlin, March 26-27, 2020
This workshop celebrates the accomplishments of the Einstein project that started in April 2015 and ends in July 2020. The original proposal centered around 20 concrete problems that were organized into four themes: maximum likelihood geometry, euclidean distance optimization, convex algebraic geometry, and classical moduli spaces. More than half of the 20 problems have since been solved. The problems and their solutions will be featured in the one-hour lectures, while the shorter lectures present recent research results on other topics in Nonlinear Algebra.
The support of the Einstein Foundation and MPI for Mathematics in the Sciences in Leipzig is gratefully acknowledged.
09:00-09:20 | Registration | Title |
09:20 - 09:30 | Welcome | |
09:30 - 10:30 | Kaie Kubjas (Aalto University) | Nonnegative rank: Rational factorizations, boundaries and semi-algebraic characterizations |
10:30 - 11:00 | Coffee Break | |
11:00 - 11:30 | Benjamin Schröter (Binghamton University) | An update on the tropical Grassmannians and Dressians |
11:30 - 12:30 | Diego Cifuentes (MIT) | The geometry of SDP relaxations |
12:30 - 14:00 | Lunch | |
14:00 - 14:30 | Carlos Améndola (TU Munich) | Invariant Theory and Iterative Proportional Scaling for Maximum Likelihood Estimation |
14:30 - 15:00 | Fatemeh Mohammadi (University of Bristol) | Algebra and Combinatorics of Conditional Independence Models with Hidden Variables |
15:00 - 15:30 | Coffee Break | |
15:30 - 16:30 | Jose Israel Rodriguez (University of Wisconsin - Madison) | Critical points, Euler characteristics, and nearest point problems |
16:30 - 17:00 | Sascha Timme (TU Berlin) | Estimating linear covariance models with numerical nonlinear algebra |
19:00 | Social Dinner^{*} |
09:30 - 10:30 | Marta Panizzut (TU Berlin) | Moduli space of tropical cubic surfaces |
10:30 - 11:00 | Coffee Break | |
11:00 - 11:30 | Kathlén Kohn (KTH Stockholm) | Minimal Problems in Computer Vision |
11:30 - 12:30 | Emre Sertöz (MPI MiS Leipzig) | Developing a calculus for periods of varieties |
12:30 - 14:00 | Lunch | |
14:00 - 14:30 | Alheydis Geiger (Universität Tübingen) | A tropical count of binodal cubic surfaces |
14:30 - 15:00 | Ben Smith (University of Manchester) | Face posets of tropical polyhedra |
15:00 - 15:30 | Coffee Break | |
15:30 - 16:30 | Dhruv Ranganathan (University of Cambridge) |
If you plan to attend this workshop, please register by sending an e-mail to Antje Schulz (aschulz@math.tu-berlin.de).
To help us smooth out the organization, please use the subject line 'Registration NLA' for your e-mail.
All the talks will be held in room MA 042 in the Institute of Mathematics at TU Berlin. The coffee breaks will take place in room MA 141.
^{*}The social dinner will be self paid.