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Tuesday, March 14, 2023 2:30 pm - 2:30 pm EDT (GMT -04:00)

Logic Seminar

Alexi Block Gorman, McMaster University

"Toward a characterization of V_k-definability"

Tuesday, March 14, 2023 10:00 am - 10:00 am EDT (GMT -04:00)

Student Number Theory Seminar

Sourabh Das, Department of Pure Mathematics, University of Waterloo

"An explicit version of Chebotarev's density theorem"

Thursday, March 16, 2023 4:00 pm - 4:00 pm EDT (GMT -04:00)

Analysis Seminar

Roberto Hernandez Palomares, Department of Pure Mathematics, University of Waterloo

"K-theoretic classification of inductive limit actions of fusion categories on AF C*-algebras"

Tuesday, March 14, 2023 11:30 am - 11:30 am EDT (GMT -04:00)

Number Theory Seminar

Matthew Satriano, Department of Pure Mathematics, University of Waterloo

"Galois closures and components of Hilbert schemes"

Wednesday, March 15, 2023 2:00 pm - 2:00 pm EDT (GMT -04:00)

Algebraic Geometry Working Seminar

Ruxandra Moraru, Department of Pure Mathematics, University of Waterloo

"Deformation theory of vector bundles and of Hitchin pairs"

Thursday, March 16, 2023 2:30 pm - 2:30 pm EDT (GMT -04:00)

Geometry & Topology Seminar

Lisa Marquand, Stony Brook University

"Symplectic Birational Involutions of manifolds of OG10 type"

Wednesday, March 8, 2023 1:00 pm - 1:00 pm EST (GMT -05:00)

Model Theory Working Seminar

Jenny Xu, Department of Pure Mathematics, University of Waterloo

"An Invitation to Model-Theoretic Galois Theory (Part II)"

Thursday, March 9, 2023 10:00 am - 10:00 am EST (GMT -05:00)

Elliptic Curves Learning Seminar

Yash Singh, Department of Pure Mathematics, University of Waterloo

"Supersingular reduction of elliptic curves"

We study reductions of elliptic curves modulo p and the phenomenon of supersingular reductions. Time permitting, we will prove a landmark theorem of Elkies in this vein.

MC 5403

Wednesday, March 8, 2023 11:00 am - 11:00 am EST (GMT -05:00)

Horospherical MMP Seminar

Sean Monahan, Department of Pure Mathematics, University of Waterloo

"Contracting the other rays in NE(X) for horospherical X"

I plan to continue from last time on contracting extremal rays in NE(X). This time, we will see how to contract the curve classes coming from walls in the coloured fan for X. So the plan is to touch on section 3.6 and then move to section 4.6 in Brion’s paper “Variétés sphériques et théorie de Mori”. If there is time, I will start the other material in section 4: flips.