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Selection Principles in Mathematics
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Problems from COC 3

  1. Problem 1: Find a space of countable tightness which has property Blinear(Omegay,Omegay ) but which does not have the property Omegay --> |Omegay|22
    Commentary
  2. Problem 2: Find a space of countable tightness which has property C1(Omegay,Omegay) but which does not have the property that for each n and k, Omegay -->(Omegay)nk
    Commentary
  3. Problem 3: Find a space of countable tightness which has property C1(Omegay,Omegay) but which does not have the property Omegay -->[Omegay]23
    Commentary
  4. Problem 4 ?
    Commentary