COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |

University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > A diagrammatic approach to Ocneanu cells

## A diagrammatic approach to Ocneanu cellsAdd to your list(s) Download to your calendar using vCal - Stephen Bigelow (University of California, Santa Barbara)
- Monday 23 January 2017, 11:30-12:30
- Seminar Room 1, Newton Institute.
If you have a question about this talk, please contact info@newton.ac.uk. OASW01 - Structure of operator algebras: subfactors and fusion categories Kuperberg's SU(3) spider has “web” diagrams with oriented strands and trivalent vertices. A closed web evaluates to a real number, which can be thought of as a weighted sum of certain ways to “colour” the faces of the web. The weighting here is defined using Ocneanu cells, which were explicitly calculated in a 2009 paper by Evans and Pugh. I will describe a diagrammatic way to recover their calculation in the simplest case of the A series. Each strand of a web becomes a parallel pair of coloured strands, and each vertex becomes three coloured strands that connect up the three incoming pairs of coloured strands. This talk is part of the Isaac Newton Institute Seminar Series series. ## This talk is included in these lists:- All CMS events
- Featured lists
- INI info aggregator
- Isaac Newton Institute Seminar Series
- School of Physical Sciences
- Seminar Room 1, Newton Institute
Note that ex-directory lists are not shown. |
## Other listsMartin Centre, 37th Annual Series, Architecture Veritas Forum Cambridge women@CL Talklet Series## Other talksBlack and British Migration Hamilton spheres in 3-uniform hypergraphs The Thermodynamic Uncertainty Relation Migration in Science The Partition of Ukraine: A Nightmare What has Engineering Design to say about Healthcare Improvement? |