English

SPM Bulletin 21

General Topology 2008-12-31 v1 Combinatorics Logic

Abstract

Contents: 1. Editor's note; 2. Personal impressions from the SPM07 meeting; 3. Research announcements; 3.1. Coloring ordinals by reals; 3.2. Long Borel Hierarchies; 3.3. Rothberger's property in finite powers; 3.4. Special subsets of the reals and tree forcing notions; 3.5. All automorphisms of the Calkin algebra are inner; 3.6. Continuous selections and sigma-spaces; 3.7. On the closure of the diagonal of a T1-space; 3.8. Splitting families and Noetherian type; 3.9. Even more simple cardinal invariants; 3.10. A classification of CO spaces which are continuous images of compact ordered spaces; 4. Problem of the Issue

Cite

@article{arxiv.0706.1954,
  title  = {SPM Bulletin 21},
  author = {Boaz Tsaban},
  journal= {arXiv preprint arXiv:0706.1954},
  year   = {2008}
}
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