## Contact Info

Pure MathematicsUniversity of Waterloo

200 University Avenue West

Waterloo, Ontario, Canada N2L 3G1

Departmental office: MC 5304

Phone: 519 888 4567 x33484

Fax: 519 725 0160

Email: puremath@uwaterloo.ca

Monday, February 27, 2017 - 11:30 AM EST

**Yoav Len, University of Waterloo**

In this talk I will give an introduction to tropical geometry, and explain some of the terms that are relevant for studying Hodge theory for matroids.

MC 5403

Monday, February 27, 2017 - 2:30 PM EST

**Anthony McCormick, Department of Pure Mathematics, University of Waterloo **

“Graded Lie Brackets in Differential Geometry”

We will discuss the basic theory and applications of various graded Lie brackets which appear naturally in differential geometry; namely the Frolicher-Nijenhuis, Schouten-Nijenhuis and Nijenhuis-Richardson brackets.

M3-3103

Monday, February 27, 2017 - 3:00 PM EST

**Zack Cramer, Department of Pure Math, University of Waterloo**

"The Gershgorin Circle Theorem"

Monday, February 27, 2017 - 4:00 PM EST

**Trevor Wooley, University of Bristol **

“A translation-invariant perspective on arithmetic (and) harmonic analysis”

Tuesday, February 28, 2017 - 11:00 AM EST

**Ian Payne, Department of Pure Mathematics, University of Waterloo **

“Subdirectly Irreducible Algebras in Varieties of 2-semilattices”

Tuesday, February 28, 2017 - 2:30 PM EST

**Adam Chapman, Tel-Hai Academic College, Israel **

“Linked Fields of Characteristic 2 and their u-Invariant.”

Tuesday, February 28, 2017 - 3:30 PM EST

**Michael Deveau, Department of Pure Mathematics, University of Waterloo **

“Enumeration Degree and Existential Atomicity”

We will investigate the notion of a Turing degree of a structure. However, since it is not as useful as we would hope, we instead use enumeration degrees, which prove more fruitful. We then establish some results concerning existential atomicity of a structure.

MC 5403

Wednesday, March 1, 2017 - 3:00 PM EST

**Shubham Dwivedi, Department of Pure Mathematics, University of Waterloo **

“Second Variation Formula, Morse Index and Stability”

We will derive the Second variation formula for a minimal submanifold. After defining the Morse index and Stable Minimal Submanifolds, we will derive the Stability Inequality. As a result, we will prove a theorem due to Simons and another theorem due to Schoen and Yau.

Thursday, March 2, 2017 - 1:30 PM EST

**Patrick Ingram, York University **

“The critical height of a rational function”

Thursday, March 2, 2017 - 1:30 PM EST

**Brandon Doherty, Department of Pure Mathematics, University of Waterloo **

“The Lie Algebra of an Algebraic Group”

We will introduce the Lie Algebra of a linear algebraic group and begin studying the adjoint representation.

MC 5413

Friday, March 3, 2017 - 2:30 PM EST

**David Duncan, McMaster University **

“Identifying instantons with holomorphic curves”

A variant of the Atiyah-Floer conjecture states that the SO(3)-Donaldson invariants are iso- morphic to certain invariants coming out of symplectic geometry. I will discuss this conjecture in a few special cases that suggest an outline for proving the more general statement.

MC 5413

Friday, March 3, 2017 - 3:30 PM EST

**Elias Katsoulis, East Carolina University **

“C*envelopes and the Hao-Ng isomorphism”

University of Waterloo

200 University Avenue West

Waterloo, Ontario, Canada N2L 3G1

Departmental office: MC 5304

Phone: 519 888 4567 x33484

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