1)solid n sphere,n维球体2)n-dimensional topological solid sphere,n维拓扑球体3)N-sphere,N维超球4)n-dimension sphere,n-维球面5)n-dimensional Euelid space,n维球面6)n-dimensional open sphere,n维开球
用法例句
In this paper, we set up the topological mapping between n-dimensional sphere S~n and extended space R*= R~n , where R~n is n-dimensional Euelid space and R~n is a new element.
