Seminars and Colloquia by Series

Branched covers III

Series
Geometry Topology Working Seminar
Time
Friday, October 27, 2017 - 13:00 for 1.5 hours (actually 80 minutes)
Location
Skiles 006
Speaker
John Etnyre – Georgia Tech

Please Note: Notice the seminar is back to 1.5 hours this week.

In this series of talks I will introduce branched coverings of manifolds and sketch proofs of most the known results in low dimensions (such as every 3 manifold is a 3-fold branched cover over a knot in the 3-sphere and the existence of universal knots). This week we should be able to finish our discussion of branched covers of surfaces and transition to 3-manifolds.

Branched covers II

Series
Geometry Topology Working Seminar
Time
Friday, October 20, 2017 - 13:55 for 1 hour (actually 50 minutes)
Location
Skiles 006
Speaker
John Etnyre – Georgia Tech

Please Note: Note this talk is only 1 hour (to allow for the GT MAP seminar at 3.

In this series of talks I will introduce branched coverings of manifolds and sketch proofs of most the known results in low dimensions (such as every 3 manifold is a 3-fold branched cover over a knot in the 3-sphere and the existence of universal knots). This week we will continue studying branched covers of surfaces. Among other things we should be able to see how to use branched covers to see some relations in the mapping class group of surfaces.

Branched covers I

Series
Geometry Topology Working Seminar
Time
Friday, October 13, 2017 - 13:55 for 1.5 hours (actually 80 minutes)
Location
Skiles 006
Speaker
John Etnyre – Georgia Tech
In this series of talks I will introduce branched coverings of manifolds and sketch proofs of most the known results in low dimensions (such as every 3 manifold is a 3-fold branched cover over a knot in the 3-sphere and the existence of universal knots). Along the way several open problems will be discussed.

Introduction to Singularity Theory 1

Series
Geometry Topology Working Seminar
Time
Friday, September 15, 2017 - 13:55 for 1.5 hours (actually 80 minutes)
Location
Skiles 006
Speaker
Peter Lambert-Cole – Georgia Institute of Technology
In this series of talks, I will introduce basic concepts and results in singularity theory of smooth and holomorphic maps. In the first talk, I will present a gentle introduction to the elements of singularity theory and give a proof of the well-known Morse Lemma that illustrates key geometric and algebraic principles of singularity theory.

Lagrangian Floer Theory II

Series
Geometry Topology Working Seminar
Time
Friday, March 17, 2017 - 14:00 for 1.5 hours (actually 80 minutes)
Location
Skiles 006
Speaker
John Etnyre – Georgia Tech

Please Note: This will be a 1.5 hour (maybe slightly longer) seminar.

Following up on the previous series of talks we will show how to construct Lagrangian Floer homology and discuss it properties.

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