2 papers
math.GT2018
On the secondary Upsilon invariant
Xiaoyu Xu
In this paper we construct an infinite family of knots with vanishing Upsilon invariant , although their secondary Upsilon invariants show that they are linearly independe…
math.DS2016
Partially Bounded Transformations have Trivial Centralizer
Johann Gaebler, Alexander Kastner, Cesar E. Silva +2
We prove that for infinite rank-one transformations satisfying a property called "partial boundedness," the only commuting transformations are powers of the original transformation…