## 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

Monday, March 29, 2021 — 4:00 PM EDT

**Linda Westrick, Pennsylvania State University**

"Luzin's (N) and randomness reflection"

Monday, March 29, 2021 — 1:30 PM EDT

We’re starting up an arithmetic geometry seminar, online, and we’d like to include anyone who wants to participate. The starting point will be the book by Hindry and Silverman on Diophantine Geometry, but we may quickly diverge into other directions. I don’t expect this to be the regular meeting time – the most important part of the first meeting will be to decide on a regular meeting time. So if you can’t make it to the organizational meeting, please email David McKinnon to say what your scheduling constraints are.

Friday, March 26, 2021 — 2:30 PM EDT

**Oğuz Şavk, Bogaziçi University**

"Classical and new plumbings bounding contractible manifolds and homology balls"

A central problem in low-dimensional topology asks which homology 3-spheres bound contractible 4-manifolds and homology 4-balls. In this talk, we address this problem for plumbed 3-manifolds and we present the classical and new results together. Our approach is based on Mazur’s famous argument which provides a unification of all results in a fairly simple way.

Wednesday, March 24, 2021 — 11:00 AM EDT

**Christopher Lang, Department of Pure Mathematics, University of Waterloo**

"On the charge density and asymptotic tail of a monopole"

Monday, March 22, 2021 — 4:00 PM EDT

**Guillaume Aubrun, Université Claude Bernard Lyon 1**

"Entangleability of cones"

Thursday, March 18, 2021 — 1:30 PM EDT

**Arundhathi Krishnan, Department of Pure Mathematics, University of Waterloo**

We will continue our discussion about monoids presented by generators and relations. What comes next is to look at the notion of normal form for an element in such a monoid, and at how normal forms can be used to prove the cancellativity property.

Zoom meeting:

- Meeting ID: 935 3963 3379
- Passcode: 339014

Wednesday, March 17, 2021 — 2:00 PM EDT

**Marco Handa, Department of Pure Mathematics, University of Waterloo**

"Internality in stable theories"

Thursday, March 11, 2021 — 1:30 PM EST

**Arundhathi Krishnan, Department of Pure Mathematics, University of Waterloo**

Wednesday, March 10, 2021 — 11:00 AM EST

**Anton Iliashenko, Department of Pure Mathematics, University of Waterloo**

"Harmonic Mappings"

Thursday, March 4, 2021 — 1:30 PM EST

**Arundhathi Krishnan, Pure Mathematics, University of Waterloo**

Wednesday, March 3, 2021 — 11:00 AM EST

**Spiro Karigiannis, Department of Pure Mathematics, University of Waterloo**

"Variational characterization of instanton-submanifolds"

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.