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 Events
Université de Caen
Thu 3 Jul 2014, 3:15pm SPECIAL
Topology and related seminars
ESB 4133
Laver tables
ESB 4133
Thu 3 Jul 2014, 3:15pm-4:15pm

Abstract

Discovered (or invented?) by Richard Laver in the 1990s, the tables that are now known as Laver tables are finite structures obeying the self-distributivity law x(yz)=(xy)(xz). Although their construction is totally explicit, some of their combinatorial properties are (so far) established only using unprovable set theoretical axioms, a quite unusual and paradoxical situation. We shall explain the construction of Laver tables, their connection with set theory, and their potential applications in low-dimensional topology via the recent computation of some associated cocycles.
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Mathematics Graduate Students, Post Docs, Faculty
Mon 7 Jul 2014, 8:30am SPECIAL
One Time Event
UBC (July 7-12, 2014)
West Coast Algebraic Topology Summer School
UBC (July 7-12, 2014)
Mon 7 Jul 2014, 8:30am-5:00pm

Details

This summer school is aimed at graduate students and post-docs, though all are welcome. The scientific goal is for participants to learn about the different aspects of the study of topological field theories, reaching the research frontier as much as possible. These different aspects include:
(1) the origins of topological quantum field theory in physics;
(2) the mathematical formulation and relation to bordism theory;
(3) extended theories and the cobordism hypothesis;
(4) examples and applications, such as string topology, factorization homology, and examples from representation theory.

Please visit www.pims.math.ca/scientific-event/140707-wcatss for further details and the registration process.

 
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KTH Royal Institute of Technology, Sweden
Wed 16 Jul 2014, 3:15pm SPECIAL
Topology and related seminars
ESB 4133
String topology of classifying spaces
ESB 4133
Wed 16 Jul 2014, 3:15pm-4:15pm

Abstract

Analogous to string topology of manifolds, string topology of classifying spaces studies the rich algebraic structure admitted by the homology groups of free loop spaces of classifying spaces of compact Lie groups. In this talk, I will discuss my recent joint work with Richard Hepworth where we extend the previously available structure in string topology of classifying spaces into a novel kind of field theory which includes operations parameterized by homology groups of automorphism groups of free groups with boundaries in addition to operations parameterized by homology groups of mapping class groups of surfaces. This work shows that the algebraic structures in string topology of classifying spaces can be brought into line with, and in fact far exceed, those available in string topology of manifolds. Preprint: http://arxiv.org/abs/1308.6169
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Presenters, Delegates
Internationally Renowned Speakers
Wed 23 Jul 2014, 8:00am SPECIAL
One Time Event
UBC July 23-25th (registration in Buchanan Lobby)
Improving University Teaching (IUT) Conference
UBC July 23-25th (registration in Buchanan Lobby)
Wed 23 Jul 2014, 8:00am-9:00am

Details

If you are interested in a teaching conference this summer at UBC called Improving University Teaching (IUT) from July 23rd – 25th , please visit

http://www.iutconference.com/.

This is an international, multi-disciplinary conference that has been held annually for 37 years -rotating between countries all around the world.  This year’s theme is the connected classroom. The early-bird deadline for registration is May 16th and there is discounted registration for students and UBC delegates.  If you are a graduate student and are interested in volunteering at this conference please contact Karen Smith, UBC site host and Lecturer, Dept. of Microbiology & Immunology, UBC karen.smith@ubc.ca

 

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Mike Boyle
University of Maryland and UBC PIMS Distinguished Visitor
Mon 28 Jul 2014, 2:00pm
Symbolic Dynamics and Ergodic Theory Seminar
Math Annex 1102
Flow Equivalence of shifts of finite type, G-shifts of finite type and sofic shifts
Math Annex 1102
Mon 28 Jul 2014, 2:00pm-3:30pm

Abstract

 

I'll give motivation for this topic; state some background on cross sections,
cocycles and the Parry Sullivan argument; outline the classifying invariants for
flow equivalence in the primitive and G-primitive SFT case; sketch the
proof strategy; discuss the mapping class group of an SFT (with many open
questions); and indicate the results and frontiers for understanding flow
equivalence in the sofic case.

This is taken out of joint works with Huang; M. Sullivan; and Carlsen and Eilers.
For the mapping class group, I will cite some results of Chuysurichay. 
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