Injective hulls of S-systems over an inverse semigroup
Li Gang · 2011
Think of each element of S as inducing a unary operation on a S-system,then the S-system is a finitary algebra and all the notions of universal algebra are available.We define the semilatticible subset of a S-system and the face of a subset of a S-system,the injective hulls of S-systems over an inverse semigroup are constructed.The result of concerned literatures is generalized.