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Last update: T_KA (10.05.2010)
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Last update: T_KA (23.05.2003)
V.D.Belousov, Osnovy teorii kvazigrupp i lup, Nauka, Moskva, 1967. |
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Last update: T_KA (23.05.2003)
1. Definition of a quasigroup and a loop as a groupoid and as a system with three binary operations. Connections with latin squares and group transversals.
2. Subquasigroups, nuclei and the centre. Local units and idempotents. Multiplication groups. Inner mapping groups and their generators. Normal subquasigroups and congruences.
3. Albert's theorem. G-loops. Autotopies and autostrophies.
4. Medial kvasigroups. Toyoda-Murdoch-Bruck theorem. T-quasigroups. Distributive quasigroups. CH-quasigroups, F-quasigroups. Some properties of linear quasigroups.
5. Constructions: product and semidirect product. Crossed product of a quasigroup and a system of quasigroups.
6. Inverse quasigrups and their possible applications to cryptography.
7. n-ary quasigroups, in particular medial quasigroups and those of type T. Belousov theorem on n-medial quasigroups.
8. Codes with one check symbol as n-ary quasigroups. Properties and examples. Orthogonality of . n-quasigroups. Check function on n-quasigroups. Secret sharing from the standpoint of n-quasigroups.
9. About 20 problems of Belousov. |