Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4658167 | Topology and its Applications | 2015 | 11 Pages |
Abstract
We consider the Stone space of the Boolean algebra, constructed by M.G. Bell (see Example 2.1 in [2]), which is the compactification, BN, of the countable discrete space N . Here we consider convergent sequences in BN∖NBN∖N.We prove that if a point x∈BN∖Nx∈BN∖N is the limit of some sequence {sn:n∈ω}{sn:n∈ω} from N , or a point x∈[A]∖Ax∈[A]∖A, where A⊆NA⊆N is a strict anti-chain in N , then there is a sequence in BN∖NBN∖N, that converges to x.We also prove that if A is a countable discrete set of u -points in BN∖NBN∖N and x∈[A]∖Ax∈[A]∖A, then x is not the limit of any sequence of points of BN∖NBN∖N.
Related Topics
Physical Sciences and Engineering
Mathematics
Geometry and Topology
Authors
A.A. Gryzlov,