### Evasion and prediction II

by Brendle and Shelah. [BnSh:540]

J London Math Soc, 1996

A subgroup G <= Z^omega exhibits the Specker
phenomenon if every homomorphism G-> Z maps almost all
unit vectors to 0 . We give several combinatorial characterizations
of the cardinal se, the size of the smallest
G <= Z^omega exhibiting the Specker phenomenon. We also
prove the consistency of b < e, where b is
the unbounding number and e the evasion number. Our results
answer several questions addressed by Blass.

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