Eric Riedl, University of Notre Dame
"Plane curves, log tangent sheaves and the Geometric Lang-Vojta Conjecture"
Daniel Alvarez, University of Toronto
"On generalized Kähler structures and Lie brackets"
Brady Ali Medina, Department of Pure Mathematics, University of Waterloo
"Lifting a co-Higgs field to a Poisson structure"
Xinyue (Cynthia) Xie & Layth Al-Hellawi, Department of Pure Mathematics, University of Waterloo
"Effectiveness properties of the Walker's Cancellation Theorem - Part III"
Aiden Suter, Department of Pure Mathematics, University of Waterloo
"A brief overview of algebraic Fedosov quantization"
Matthew Satriano, Department of Pure Mathematics, University of Waterloo
"The canonical divisor and properties of Cartier divisors for horospherical varieties"
We will discuss criteria for Cartier divisors to be base point free or ample. We will also give a formula for the canonical divisor. We will include many examples.
This seminar will be held jointly online and in person:
Brady Ali Medina, Department of Pure Mathematics, University of Waterloo
"Sidon Sets"
Anton Iliashenko, Department of Pure Mathematics, University of Waterloo
"Betti numbers of nearly G2 manifolds"
On a Riemannian manifold there is a Weitzenböck identity which is a relationship between the Laplacian, the Bochner Laplacian and the curvature. We will consider this formula in the nearly G_2 setting and see how bounds on the Weyl Tensor or Sectional Curvature can give us certain information about the Betti numbers.
MC 5403
Julie Desjardins, University of Toronto Mississauga
"Torsion points and concurrent exceptional curves on del Pezzo surfaces of degree one"
The blow up of the anticanonical base point on X, a del Pezzo surface of degree 1, gives rise to a rational elliptic surface E with only irreducible fibers. The sections of minimal height of E are in correspondence with the 240 exceptional curves on X. A natural question arises when studying the configuration of those curves :
Matthew Satriano, Department of Pure Mathematics, University of Waterloo
"The canonical divisor and properties of Cartier divisors for horospherical varieties"
We will discuss criteria for Cartier divisors to be base point free or ample. We will also give a formula for the canonical divisor. We will include many examples.
This seminar will be held jointly online and in person: