Supported by the National Natural Science Foundation of China (10671173)
Let X be the limit of an inverse system {Xα, παβ, ∧} and and let λ be the cardinal number of A. Assume that each projection πα : X → Xα is an open and onto map and X is A-paracompact. We prove that if each ...
Supported by the NNSF of China(10571151,10671173);Supported by the NSF of Fujian Province(2006J0228,2008F5066)
In this paper, we proved that a sequential space has a cs*-regular cs*-network (or a cs*-regular weak base) is metrizable, which generalized related results in [6], [12] and [14].