2023-ary quasigroups and related topics

SEMINARS

2023-ary quasigroups and related topics
Sobolev Institute of Mathematics, room 115, Novosibirsk

Topic of the seminar
discrete mathematics, algebraic combinatorics scientific reports and abstract reports are heard at the seminar; on days when there is no keynote speaker, there are discussions and short presentations

Time and place:
every Friday, 11:00, room 115 in Sobolev Institute of Mathematics + ZOOM

RSS: Forthcoming seminars

Seminar organizers
Avgustinovich Sergey Vladimirovich
Krotov Denis Stanislavovich
Potapov Vladimir Nikolaevich
Taranenko Anna Aleksandrovna

Organizations
Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk

2023-ary quasigroups and related topics, Novosibirsk

On the eigenvectors of the quotient matrix of a perfect coloring of a Q-polynomial graph. D. S. Krotov, V. N. Potapov May 24, 2024 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Estimates for the number of vertices of the polyhedron of polystochastic matrices A. A. Taranenko May 17, 2024 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Every latin hypercube of order 5 contains transversals A. L. Perezhogin, V. N. Potapov, S. Yu. Vladimirov September 15, 2023 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
On the classification of perfect colorings of small degree in the hypercube D. S. Krotov June 23, 2023 Novosibirsk, Sobolev Institute of Mathematics, room 115
Perfect colorings of the hypergraph of submatrices Borodin Semen Olegovich January 20, 2023 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Completely regular codes in the Hoffman-Singleton graph Mamchits, I. A. October 14, 2022 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
On test fragments of circulant graphs M. A. Lisitsyna August 19, 2022 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Authomorphism groups of distance-regular graphs (Dr.Sc. dissertation) L. Yu. Tsiovkina May 20, 2022 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Survey: Zagier D. "Newman's short proof on the prime number theorem." Am. Math. Monthly, 1997. S. A. Malyugin April 1, 2022 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
On numbers written with a small number of digits in different numeration systems K. V. Storozhuk January 21, 2022 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Embedding in MDS codes and Latin cubes V. N. Potapov September 24, 2021 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Projective tilings and full-rank perfect codes D. S. Krotov September 17, 2021 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Zp-null Design Spaces: Minimum Distances and Dimensions (survey) I. Yu. Mogil'nykh September 10, 2021 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Optimal functions with spectral constraints in hypercubes A. A. Valyuzhenich September 3, 2021 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Differential equations in the theory of permutation patterns S. V. Kitaev August 6, 2021 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
On some equitable 2-partitions of Hamming graph of diameter 3 I. Yu. Mogil'nykh January 22, 2021 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Perfect colorings of the crossed prism graph M. A. Lisitsyna January 15, 2021 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Review: Induced subgraphs of hypercubes and a proof of the Sensitivity Conjecture (H.Huang, 2019) A. A. Valyuzhenich, I. Yu. Mogil'nykh December 18, 2020 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
On q-ary propelinear codes from regular subgroups of the affine group I. Yu. Mogil'nykh, F. I. Solov'eva November 6, 2020 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Bipartite perfect colorings of the infinite square grid: twin colors and the covering case D. S. Krotov October 30, 2020 11:00 Novosibirsk, online
Completely regular codes from regular spreads and linear SQS in Grassmann and Johnson graphs I. Yu. Mogil'nykh October 2, 2020 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Determinants and spectra of multidimensional matrices and perfect colorings of hypergraphs A. A. Taranenko September 25, 2020 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Transversals and diagonals of iterated groups and quasigroups of large arity A. A. Taranenko May 29, 2020 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Coordinate transitivity of extended perfect codes and their SQS I. Yu. Mogil'nykh, F. I. Solov'eva March 20, 2020 Novosibirsk, Sobolev Institute of Mathematics, room 115
Refinement of the asymptotic behavior of the number of transversals in iterated groups and quasigroups A. A. Taranenko November 29, 2019 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
On the XVI International Symposium “Problems of Redundancy in Information and Control Systems” V. N. Potapov November 1, 2019 Novosibirsk, Sobolev Institute of Mathematics, room 115
Discussion October 19, 2018 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
MMS-type problems for Johnson scheme I. Yu. Mogil'nykh, K. V. Vorob'ev, A. A. Valyuzhenich October 12, 2018 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
On one recurrence relation for a geodesic flow in a magnetic field on a two-dimensional torus S. V. Agapov, A. A. Valyuzhenich October 5, 2018 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Differentially 4-uniform 2-to-1 functions as subfunctions of APN-permutations V. A. Idrisova September 28, 2018 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115

Equitable partitions and completely regular codes

On the classification of the equitable partitions of the 12-cube with the quotient matrix [[0,12],[4,8]] D. S. Krotov September 21, 2018 Novosibirsk, Sobolev Institute of Mathematics, room 115
The minimum supports of the (n-2)-eigenfunctions of the Star graph A. A. Valyuzhenich August 3, 2018 Novosibirsk, Sobolev Institute of Mathematics, room 115
M.V. Kuznetsov. General solution of the evolution equation for a cellular automaton on a cubic lattice April 27, 2018 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
Perfect colorings of infinite multifold chains M. A. Lisitsyna April 13, 2018 Novosibirsk, Sobolev Institute of Mathematics, room 115
Perfect 2-colorings of Hamming graphs with eigenvalue $\lambda_2$ A. A. Valyuzhenich, I. Yu. Mogil'nykh April 6, 2018 Novosibirsk, Sobolev Institute of Mathematics, room 115
Some results on matrices that are extremal for existence of polyplex A. A. Taranenko March 30, 2018 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115
On equitable partitions of $q$-ary Hamming graphs K. V. Vorob'ev February 23, 2018 11:00 Novosibirsk, Sobolev Institute of Mathematics, room 115