<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>This article describes a rough subgroup with respect to a normal subgroup of a group, and some properties of the lower and the upper approximations in a group.</p></abstract>

This article describes a rough subgroup with respect to a normal subgroup of a group, and some properties of the lower and the upper approximations in a group.

On Rough Subgroup of a Group

Qingdao University of Science and Technology, China

On Rough Subgroup of a Group

Data publikacji: 08 lip 2010

Zakres stron: 213 - 217

DOI: https://doi.org/10.2478/v10037-009-0026-6

This content is open access.