Pyekhtyeryev Vasyl

Publications in Math-Net.Ru

1. Idempotent $\mathcal{D}$-cross-sections of the finite inverse symmetric semigroup $IS_n$
   
   Algebra Discrete Math., 2008, no. 3,  84–87
2. $\mathcal{H}$–,$\mathcal{R}$– and $\mathcal{L}$–cross-sections of the infinite symmetric inverse semigroup $IS_X$
   
   Algebra Discrete Math., 2005, no. 1,  92–104
3. $\mathcal{H-}$ and $\mathcal{R-}$cross-sections of the full finite semigroup $T_n$
   
   Algebra Discrete Math., 2003, no. 3,  82–88