Left-invariant metrics with nonnegative curvature

Geometry-Topology Seminar

Thursday, October 26, 2006 - 4:30pm

Kris Tapp

Williams Colleage and the University of Pennsylvania

Location

University of Pennsylvania

DRL 4C8

Given a compact Lie group, what are the left-invariant metrics with nonnegative curvature? We discuss new results and conjectures for general groups and for SO(4).

April

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How to get to Penn's Mathematics Department

The Mathematics Department Office is located on the fourth (top) floor of David Rittenhouse Laboratory ("DRL"). The building is at 209 South 33rd Street (the Southeast corner of 33rd. and Walnut Streets). Note 33rd Street runs one way north while Walnut runs one way west.

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We are about a 15 minute walk from the main 30th Street Station and 5 minutes from the University City Rail Station at 32nd and Spruce (=South Street & Convention Avenue). Coming from the airport by train (about 15 minutes): the University City Rail Station is the second stop after you leave the airport.

If you drive, the most convenient public parking is in the pay lot whose entrance is on 34th Street between Market and Chestnut Streets.