Algebra/Topology Seminar
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
Algebra/Topology Seminar – Elena Pavelescu, University of South Alabama
302 Gordon Palmer HallTitle: Complete minors of self-complementary graphs. Abstract: A self-complementary graph on n vertices is a graph which is isomorphic to its graph complement within K_n, the complete graph on n vertices. These graphs have a high degree of structure, and yet they are far from trivial. This talk focuses on minors of self-complementary graphs. Minors
Algebra/Topology Seminar
346 Gordon Palmer Hall 505 Hackberry Lane, Tuscaloosa, AL, United StatesAlgebra/Topology Seminar
346 Gordon Palmer Hall 505 Hackberry Lane, Tuscaloosa, AL, United StatesAlgebra/Topology Seminar – Patricia Cahn (Smith College)
346 Gordon Palmer Hall 505 Hackberry Lane, Tuscaloosa, AL, United StatesTitle: Colored Tri-Plane Diagrams and the Slice-Ribbon Problem Abstract: We study dihedral branched covers of the four-dimensional sphere, where the branching set is a surface with one singularity modeled on the cone on a knot K. We construct examples of these covers using colored tri-plane diagrams, which are triples of tangles that can be used
Colloquium, William T. Trotter, Georgia Institute of Technology
346 Gordon Palmer Hall 505 Hackberry Lane, Tuscaloosa, AL, United StatesTitle: The Top Ten Theorems in the Combinatorics of Posets