%0 Journal Article
%T Special Algebraic Structures
%A Florentin Smarandache
%J Mathematics
%D 2000
%I arXiv
%X New notions are introduced in algebra in order to better study the congruences in number theory. For example, the <special semigroups> makes an important such contribution.
%U http://arxiv.org/abs/math/0010100v1