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most citedEnlargeability and index theory: Infinite covers

27 citations

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math.GT2006★ 27 cited

Enlargeability and index theory: Infinite covers

Bernhard Hanke, Thomas Schick

In a previous paper, we showed nonvaninishing of the universal index elements in the K-theory of the maximal C*-algebras of the fundamental groups of enlargeable spin manifolds. Th…

math.LO2006

Completions of countable non-standard models of Q

Peter Laubenheimer, Thomas Schick, Ulrich Stuhler

In this note, we study non-standard models of the rational numbers with countably many elements. These are ordered fields, and so it makes sense to complete them, using non-standar…