In this paper, we prove that (L^X,5) is T0,T1, T2, regular (T3), normal (T4) and completely regular spaces if and only if (R(L)^X, ω(δ)) is T0, T1, T2, regular (T3), normal (T4) and completely regula...In this paper, we prove that (L^X,5) is T0,T1, T2, regular (T3), normal (T4) and completely regular spaces if and only if (R(L)^X, ω(δ)) is T0, T1, T2, regular (T3), normal (T4) and completely regular spaces, respectively, and (L^X,δ) is N-compact if and only if (R(L)^X, ω(δ)) is N-compact.展开更多
基金Foundation item: the National Natural Science Foundation of China (No. 10471083) the Natural Science Foundation of Zhejiang Education Committee (No. 20060500).
文摘In this paper, we prove that (L^X,5) is T0,T1, T2, regular (T3), normal (T4) and completely regular spaces if and only if (R(L)^X, ω(δ)) is T0, T1, T2, regular (T3), normal (T4) and completely regular spaces, respectively, and (L^X,δ) is N-compact if and only if (R(L)^X, ω(δ)) is N-compact.