Mathematics Calendar 
September 18, 2013
| Wednesday, September 18 |
Noncommutative Geometry
Time: 14:30
Speaker: Asghar Ghorbanpour (Western) Title: "NCG Learning Seminar: Mathematics and Physics of the Quantum Hall Effect" Room: MC 107 Abstract: Klaus von Klitzing was awarded a Nobel prize in physics in 1985 for his discovery of the quantum Hall effect in 1980. In this talk I shall first give a quick introduction to the physics of the quantum Hall effect. I shall then explain how quantization of the Hall conductivity at low temperatures can be understood using tools from noncommutative geometry as pioneered by Jean Bellisard. Connes' index theorem relating K-theory and cyclic cohomology plays an important role here. (Note: This Thursday von Klitzing will give a talk at 5:30 PM in Talbot College.) Homotopy Theory
Time: 14:30
Speaker: Daniel Schaeppi (Western) Title: "Localizations and completions in topology: An introduction" Room: MC 108 Abstract: Geometry and Topology
Time: 15:30
Speaker: Christian Haesemeyer (UCLA) Title: "On the K-theory of toric varieties in characteristic p, III" Room: MC 108 Abstract: |
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