P. PattaraintakornK. NaruedomkulK. PalasitKing Mongkut's Institute of Technology LadkrabangMahidol University2018-09-132018-09-132009-08-01Applied Mathematics Letters. Vol.22, No.8 (2009), 1170-1173089396592-s2.0-67349242027https://repository.li.mahidol.ac.th/handle/20.500.14594/27779In this work, we study the roughness measure of fuzzy sets. New properties and roughness bounds for fuzzy set operations are established. Knowing these bounds of the operations results helps one to avoid unnecessary space in computation. © 2009 Elsevier Ltd. All rights reserved.Mahidol UniversityMathematicsArticleSCOPUS10.1016/j.aml.2008.09.002