Wednesday, April 3, 2019

Wednesday, April 3, 2019 — 3:30 PM EDT
Gholamreza Aghamollaei, Shahid Bahonar University of Kerman, Iran   "The numerical range of quaternion matrices with respect to involutions"   In this talk, we study some algebraic and geometrical properties of the quaternionic numerical ranges with respect to involutions. We give a description of these sets for 2 by 2 matrices and also for $\phi$-hermitian and $\phi$-skew hermitian quaternion matrices.
Wednesday, April 3, 2019 — 3:30 PM EDT

Michael Deveau, Department of Pure Mathematics, University of Waterloo

“Non-triviality of the Bounded Jump Hierarchy - Part 1”

Wednesday, April 3, 2019 — 4:30 PM EDT

Ben Moore, University of Waterloo

"A proof of the Hell-Neˇsetˇril Dichotomy via Siggers Polymorphism"

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