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math.LO2015
Non-Archimedean Abelian Polish Groups and Their Actions
Longyun Ding, Su Gao
In this paper we consider non-archimedean abelian Polish groups whose orbit equivalence relations are all Borel. Such groups are called tame. We show that a non-archimedean abelian…
math.LO2015★ 2 cited
On equivalence relations generated by Schauder bases
Longyun Ding
In this paper, a notion of Schauder equivalence relation is introduced, where is a linear subspace of and the unit vectors form a…