Recent and upcoming talks by Scott Schneider

Scott Schneider: Commuting endomorphisms and hypersmooth equivalence relations, III

Thursday, October 6, 2016, from 4 to 5:30pm East Hall, room 3096 Speaker: Scott Schneider (University of Michigan) Title: Commuting endomorphisms and hypersmooth equivalence relations, III Abstract: An equivalence relation E is hypersmooth (hyperfinite) if E is the union of an increasing sequence of smooth (finite) Borel equivalence relations. continue reading…

Scott Schneider: Commuting endomorphisms and hypersmooth equivalence relations, II

Thursday, September 29, 4:00-5:30, East Hall 3096. An equivalence relation E is hypersmooth (hyperfinite) if E is the union of an increasing sequence of smooth (finite) Borel equivalence relations.  In the mid 80s, Weiss proved that the equivalence relation generated by a finite family of commuting Borel automorphisms is hyperfinite, and in the mid 90s, Dougherty, Jackson, and Kechris proved that the equivalence relation generated by a single Borel endomorphism is hypersmooth.  continue reading…

Scott Schneider: Commuting endomorphisms and hypersmooth equivalence relations

Thursday, September 22, 4:00-5:30, East Hall 3096. An equivalence relation E is hypersmooth (hyperfinite) if E is the union of an increasing sequence of smooth (finite) Borel equivalence relations.  In the mid 80s, Weiss proved that the equivalence relation generated by a finite family of commuting Borel automorphisms is hyperfinite, and in the mid 90s, Dougherty, Jackson, and Kechris proved that the equivalence relation generated by a single Borel endomorphism is hypersmooth.  continue reading…

Michigan Logic Seminar

The logic seminar will meet on Wednesday, October 26, from 4 to 5:30 in 3096 East Hall. Scott Schneider will conclude his series of lectures on Borel equivalence relations. This week’s title is “Borel cardinal invariant properties of countable Borel equivalence relations.” continue reading…

Michigan Logic Seminar

There will be a logic seminar next Wednesday, October 19, from 4 to 5:30 in 3096 East Hall. Scott Schneider will speak on “Borel boundedness and the unions problem for hyperfinite equivalence relations.”  (Stay tuned for abstract.) The talk will be recorded and made available online. continue reading…

Michigan Logic Seminar

There will be a logic seminar next Wednesday, at 4pm in SR3096, East Hall. Scott Schneider will speak on “Hyperfinite Equivalence Relations.” Abstract: We will develop some of the basic theory of hyperfinite Borel equivalence relations, and discuss some open problems concerning tail relations and unions of hyperfinite and hypersmooth equivalence relations. continue reading…

Michigan Logic Seminar

There will be a logic seminar next Wednesday, at 4pm in SR3096, East Hall. Scott Schneider will speak on “Countable Borel Equivalence Relations.” Abstract: We will develop some of the basic theory of countable Borel equivalence relations, with emphasis on the smooth and hyperfinite equivalence relations. continue reading…