RAO San-ping~1,XU Xiao-quan~2(1.Department of Science,Nanchang Institute of Technology,Nanchang 330099,China;2.Department of Mathematics,Jiangxi Normal University,Nanchang 330027,China)
Abstract：This paper defines quasiminimal sets,the equivalent characterization of the quasiminimal sets is introduced,and the mapping preserving quasiminimal sets is given,so the two corresponding extention theorems are made.
2006, Vol. 30 