Abstract
Using sheaves of special groups, we show that a general local-global principle holds for every reduced special group whose associated space of orderings only has a finite number of accumulation points. We also compute the behaviour of the Boolean hull functor applied to sheaves of special groups.
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The research leading to this note was carried out with the partial support of the European RTN Networks HPRN-CT-2002-00287 “Algebraic K-Theory, Linear Algebraic Groups and Related Structures”, and HPRN-CT-2001-00271 “Real Algebraic and Analytic Geometry”
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Astier, V. On some sheaves of special groups. Arch. Math. Logic 46, 481–488 (2007). https://doi.org/10.1007/s00153-007-0051-5
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DOI: https://doi.org/10.1007/s00153-007-0051-5