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math.GR2003
On quasi-separative semigroups
Yu. I. Krasilnikova, B. V. Novikov
We built some congruences on semigroups, from where a decomposition of quasi-separative semigroups was obtained.
math.QA2003★ 19 cited
Basic concepts of ternary Hopf algebras
Andrzej Borowiec, Wieslaw A. Dudek, Steven Duplij
The theory of ternary semigroups, groups and algebras is reformulated in the abstract arrow language. Then using the reversing arrow ansatz we define ternary comultiplication, bial…