Yoav Len, Department of Combinatorics & Optimization, University of Waterloo
"Tangent lines and the equation 28=7 x 4"
Jitendra Prakash, Department of Pure Mathematics, University of Waterloo
"Non-closure of the set of quantum correlations"
Kevin Costello, Perimeter Institute
"An introduction to the AdS/CFT correspondence for mathematicians"
The AdS/CFT correspondence has been of central importance in theoretical physics for the past 10 years. It is a correspondence between conformal field theories in d dimensions and gravity in d + 1 dimensions.
This talk will be an attempt to introduce this topic to a mathematical audience. No previous knowledge of conformal field theory will be assumed.
MC 5501
Parham Hamidi, Department of Pure Mathematics, University of Waterloo
"Bermuda, Bahama, come on Nakayama1!"
Christopher Hawthorne, Department of Pure Mathematics, University of Waterloo
"Qualitative probability theory and types, part 2"
We continue Tao's blog post; we define random variables, and we examine qualitative probability measures on definable sets. Time permitting, we study random variables on groups and the group chunk theorem.
MC 5403
Rita Gitik, University of Michigan
"A New Algorithm in Group Theory"
We describe a new algorithm which determines if the intersection of a quasiconvex subgroup of a negatively curved group with any of its conjugates is infinite. The algorithm is based on the concepts of a coset graph and a geodesic core of a subgroup. This algorithm is utilized in several other new algorithms computing breadth, height, and width of a quasiconvex subgroup of a negatively curved group.
MC 5403
Farzad Aryan, McGill University
"On an extension of the Landau-Gonek formula"
Renzhi Song, Department of Pure Mathematics, University of Waterloo
"Series parallel posets and polymorphisms, part 2"
In this two part series I will talk about the poset retraction problem on the class of series parallel posets. Having classified those series-parallel posets whose retraction problem can be solved in polynomial time, I will now show that these same posets admit what is known as SD-join polymorphisms. Equivalently, their retraction problems are in nondeterministic log space.
MC 5413
Eric Woolgar, University of Alberta
"Curvature-dimension conditions in relativity and Lorentzian geometry"
Paul Skoufranis, York University
"Bi-Free Versions of Entropy"