A decomposition of directed graphs and the Turan problem
We consider vertex decompositions of (di)graphs which appear in Automata Theory, and establish some their properties. Then we apply them to the problem of forbidden subgraphs.
math.CO↗
arXiv subjects
L. Yu. Polyakova
Publications and source records attributed to L. Yu. Polyakova.
On 0-homology of categorical at zero semigroups
The isomorphism of 0-homology groups of a categorical at zero semigroup and homology groups of its 0-reflector is proved. Some applications of 0-homology to Eilenberg-MacLane homology of semigroups are given.
math.KT↗