## Contact Info

Pure MathematicsUniversity of Waterloo

200 University Avenue West

Waterloo, Ontario, Canada

N2L 3G1

Departmental office: MC 5304

Phone: 519 888 4567 x43484

Fax: 519 725 0160

Email: puremath@uwaterloo.ca

**Returning to in-person experiences in February:** Visit the COVID-19 website for more information.

Tuesday, February 6, 2018 — 10:00 to 10:00 AM EST

**Chris Schafhauser, Department of Pure Mathematics, University of Waterloo**

"More on *GLq*(2) and *SLq*(2)"

Last week Hongdi constructed the Hopf algebra structure on *GLq*(2) and *SLq*(2). I will discuss the natural coaction of these objects on the quantum plane *kq*(2).

MC 5403

Tuesday, February 6, 2018 — 1:30 PM EST

**Jeffrey Shallit, David R. Cheriton School of Computer Science, University of Waterloo**

"Waring's theorem for binary *k*'th powers and palindromes"

Tuesday, February 6, 2018 — 3:00 PM EST

**Diana Castaneda Santos, Department of Pure Mathematics, University of Waterloo**

"Finite and integral morphisms"

We will continue studying properties of finite and integral morphisms. We will use properties of algebra homomorphisms to prove that finite morphisms have finite fibers and that they are affine local on the target. We will also prove that integral morphisms are closed and we will study some examples. Time permitting we will introduce morphisms (locally) of finite type.

MC 5417

Tuesday, February 6, 2018 — 4:30 PM EST

**Arthur Mehta, Department of Pure Mathematics, University of Waterloo**

"An Introduction to Quantum Graphs, Chromatic Numbers and Lovász Inequalties"

University of Waterloo

200 University Avenue West

Waterloo, Ontario, Canada

N2L 3G1

Departmental office: MC 5304

Phone: 519 888 4567 x43484

Fax: 519 725 0160

Email: puremath@uwaterloo.ca

University of Waterloo

University of Waterloo

43.471468

-80.544205

200 University Avenue West

Waterloo,
ON,
Canada
N2L 3G1

The University of Waterloo acknowledges that much of our work takes place on the traditional territory of the Neutral, Anishinaabeg and Haudenosaunee peoples. Our main campus is situated on the Haldimand Tract, the land granted to the Six Nations that includes six miles on each side of the Grand River. Our active work toward reconciliation takes place across our campuses through research, learning, teaching, and community building, and is centralized within our Indigenous Initiatives Office.