Algebra/Topology Seminar
Algebra/Topology Seminar – Bulent Tosun, University of Alabama
228 Gordon Palmer Hall Tuscaloosa, AL, United StatesContact geometry in low dimensions
Algebra/Topology Seminar, Bulent Tosun, University of Alabama
228 Gordon Palmer Hall Tuscaloosa, AL, United StatesTitle : Contact geometry in low dimensions Abstract: This series of talks will be about explaining some fundamental open problems in three-dimensional contact geometry. This third talk will be on overtwisted vs. tight dichotomy (or flexible vs. rigid), and existence problem of tight contact structures.
Algebra/Topology Seminar – Sergio Fabi, UA Department of Physics
228 Gordon Palmer Hall Tuscaloosa, AL, United StatesTitle: Lie Groupoid Abstract: Motivation and introduction to the general theory of groupoid, Lie groupoid and Lie algebroid. Few examples are given, in particular the gauge groupoid.
Algebra/Topology Seminar – Sergio Fabi, University of Alabama Department of Physics
228 Gordon Palmer Hall Tuscaloosa, AL, United StatesTitle: Atiyah sequence Abstract: Review of the theory of exact sequences to define a connection on a principal bundle. The construction of a gauge theory of gravity on a Lie algebroid is considered.
Seminar – Samuel Lisi, University of Mississippi
228 Gordon Palmer Hall Tuscaloosa, AL, United StatesTitle: Constructions of symplectic fillings Abstract: Bourgeois constructed a family of contact structures on $M \times T^2$ if $M$ is contact, using Giroux's open book decomposition. We will see that these are very sensitive to the page of the open book, but less so to the monodromy. We will also see that many of these