The Spectrum of the Γ-Invariant of a Bil
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James E Baumgartner; Matthew Foreman; Otmar Spinas
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Article
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1997
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Elsevier Science
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English
⚖ 245 KB
To every symmetric bilinear space X, of regular uncountable dimension , Ž . Ž . Ž . Ž Ž . . an invariant ⌫ X, g P P rF F where F F is the club filter can be assigned. We prove that in dimension / the spectrum of ⌫ cannot be determined in 2 ZFC. For this, on the one hand we show that under CH, ⌫ att