Institut für Mathematik
Universität Osnabrück
Room: 69/133
Telefon: +49 (0)541 969-2483
E-Mail: khazhgali.kozhasov at uni-osnabrueck.de
Office hours: by appointment
Institut für Analysis und Algebra
Technische Universität Braunschweig
Universitätsplatz 2
38106 Braunschweig
Room: 521
Telefon: (+49 531) 391-7509
E-Mail: k.kozhasov at tu-braunschweig.de
I am a substitute professor in the Applied algebra and data analysis working group at the University of Osnabrück and a postdoctoral researcher (on leave) in the Applied algebra group of Timo de Wolff at TU Braunschweig. Before that I was a postdoctoral researcher in the Nonlinear algebra group of Bernd Stufmfels at MPI MiS. I have obtained PhD in May 2018 at SISSA where my advisors were Andrei Agrachev and Antonio Lerario, here you can find my thesis. Here is my CV.
Geometric, topological and statistical properties of real polynomials and varieties.
On eigenvalues of symmetric matrices with PSD principal submatrices
Rational functions with only real periodic points, with Mario Kummer, submitted
Nonnegative forms with sublevel sets of minimal volume, with Jean-Bernard Lasserre, Math. Program. (2020), https://doi.org/10.1007/s10107-020-01584-0
Chebyshev polynomials and best rank-one approximation ratio, with Andrei Agrachev and André Uschmajew,
SIAM J. Matrix Anal. Appl., 41(1), 308–331
Random Spectrahedra, with Paul Breiding and Antonio Lerario, SIAM J. Optim., 29(4), 2608–2624
The Real Polynomial Eigenvalue Problem is Well Conditioned on the Average, with Carlos Beltrán,
Found Comput Math (2019), https://doi.org/10.1007/s10208-019-09414-2
On Fully Real Eigenconfigurations of Tensors, SIAM J. Appl. Algebra Geometry (2018), 2(2), 339-3478
Jointly with Timo de Wolff, Stefan Kunis, Dirk Lorenz and Tim Römer we organize a weekly online seminar on Applied Algebra and Analysis. The information about upcoming talks is available at http://www.iaa.tu-bs.de/AppliedAlgebra/AAA/. If you want to get into the mailing list, write me an e-mail.
Together with Boulos El Hilany and Timo de Wolff on July 30-31, 2021 we are organizing a workshop. The event will bring experts in real algebraic geometry, convex geometry and related fields aiming at fostering collaborations between different research groups and exchanging ideas between researchers.
SIAM Conference on Applied Algebraic Geometry, August 16-20, 2021, Texas A&M University
Analytic combinatorics in several variables, April 4-8, 2022, American Institute of Mathematics