On cohomology of locally profinite sets

We construct a locally profinite set of cardinality $\aleph_{\omega}$ with infinitely many first cohomology classes of which any distinct finite product does not vanish. Building on this, we construct the first example of a nondescendable faithfully flat map between commutative rings of cardinality...

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1. Verfasser:	Aoki, Ko
Format:	Artikel
Sprache:	eng
Schlagworte:	Mathematics - Algebraic Topology Mathematics - Commutative Algebra Mathematics - General Topology Mathematics - Logic
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