%0 Journal Article
%T Isolated and nilpotent subsemigroups in the variants of $\IS$
%A G. Y. Tsyaputa
%J Mathematics
%D 2005
%I arXiv
%X All isolated, completely isolated, and nilpotent subsemigroups in the semigroup $\IS$ of all injective partial transformations of an $n$-element set, considered as a semigroup with a sandwich multiplication are described.
%U http://arxiv.org/abs/math/0508387v1