Etale equivalence relations with certain prescribed torsion in their homology
Etale equivalence relations with certain prescribed torsion in their homology
Given a non-cyclic simple dimension group D and a subgroup E of Q/Z, we produce a minimal \'etale equivalence relation R such that H_0(\R) is isomorphic to D \oplus E, where H_0(R) denotes the zeroth homology group of R. The equivalence relation R arises by combining tail-equivalence on a Bratteli diagram with a partial homeomorphism.
Michael Francesco Ala、Hung-Chang Liao、Aaron Tikuisis
数学
Michael Francesco Ala,Hung-Chang Liao,Aaron Tikuisis.Etale equivalence relations with certain prescribed torsion in their homology[EB/OL].(2025-04-24)[2025-05-27].https://arxiv.org/abs/2504.17914.点此复制
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