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math.HO2025
Low rank matrix completion and realization of graphs: results and problems
S. Dzhenzher, T. Garaev, O. Nikitenko +3
The Netflix problem (from machine learning) asks the following. Given a ratings matrix in which each entry represents the rating of movie by customer , if customer $…
math.HO2024
Cycles in graphs and in hypergraphs: results and problems
E. Alkin, S. Dzhenzher, O. Nikitenko +2
This is an expository paper. A -cycle in a graph is a set of edges such that every vertex is contained in an even number of edges from . E.g., a cycle in the sense of gra…