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# Topology Seminar

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Wed., Mar. 31, 2021 1:00 p.m.
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Location: Live Stream
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**Speaker: **Tse Leung So, University of Regina

**Title: **Models for homotopy fibers and pullbacks

**Zoom:** https://uregina-ca.zoom.us/j/99127226830?pwd=bnFQR1R3UUdyWUxqSS9JMExMRlZwZz09

**Abstract: **I will talk about the Sullivan models for homotopy fibers and pullbacks, and look at the rational cohomology of loop spaces of simply connected spaces.