On June 10, 2022 (Friday) at 1:00 pm in the Conference Room of IMI a meeting of the seminar of the department of Mathematical Foundations of Informatics  will be held. A talk on: Sperner’s Theorem, Voting Theory, Balancing the Graph System, Strong and Weak Subsets of the Multiset will be given by Stepan Tarasenko, Kiev Polytechnic Institute, regarding his enrollment in the PhD program.   For online participation (Zoom): https://us02web.zoom.us/j/84701255174?pwd=bnVQV290cExnS2p3RVpRZDdWdFlBUT09 Meeting ID: 847 0125 5174, Passcode: 896181

The next meeting of the seminar of Mathematical Foundations of Informatics organized by the Department of Mathematical Foundations of Informatics, IMI - BAS, Faculty of Mathematics and Informatics, Veliko Tranovo University, will be held on January 27, 2022, at 2 pm (UTC+2) in Zoom. A talk will be delivered by Konstantin Vorobyov, post-doctoral students at the MOI Department of IMI - BAS, on: Binary codes with two distances  Резюме: In this work, we prove two conjectures from a paper on two distance codes by Boyvalenkov, Delchev, Zinoviev and Zinoviev (Discrete Math., 344(5), 112318, https://doi.org/10.1016/j. disc.2021.112318). We also prove several new upper and lower bounds on A_2(n,d1,d2) (i.e. the maximal cardinality of a binary code of length n with distances d1 < d2) and provide new [...]

The Department of Mathematical Foundations of Informatics is organizing a seminar under the project „Strategies for improving the quality of models identified by machine learning algorithms with application in quantum tomography“. A talk will be delivered by Violeta Ivanova-Rohling and Niklas  Rohling on: Quantum state tomography as a numerical optimization problem Abstract: We present a framework that formulates the quest for the most efficient quantum state tomography scheme as an optimization problem which can be solved numerically. This approach can be applied to a broad spectrum of relevant setups including measurements restricted to a subsystem. To illustrate the power of this method we present results for the six-dimensional Hilbert space constituted by a qubit-qutrit system, which could be realized e.g. by the N-14 nuclear [...]