## 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

**Fall term update:** visit our COVID-19 Information website for more information.

Please note: The University of Waterloo is closed for all events until further notice.

Friday, October 31, 2014 — 2:30 PM EDT

Friday, October 31, 2014 — 1:00 PM EDT

Wednesday, October 29, 2014 — 11:30 PM EDT

Wednesday, October 29, 2014 — 3:30 PM EDT

Wednesday, October 29, 2014 — 1:30 PM EDT

Tuesday, October 28, 2014 — 10:30 AM EDT

Monday, October 27, 2014 — 4:00 PM EDT

Friday, October 24, 2014 — 3:30 PM EDT

Friday, October 24, 2014 — 2:30 PM EDT

Friday, October 24, 2014 — 1:00 PM EDT

Last week, we saw the definition of a scheme. In this weeks talk, well present more examples of schemes and illustrate how, in some cases, schemes provide a better framework than varieties for studying certain geometric questions.

Thursday, October 23, 2014 — 4:30 PM EDT

Thursday, October 23, 2014 — 1:30 PM EDT

In this talk, we will present the results from the recent arXiv paper by A. Dubickas, K. G. Hare and J. Jankauskas on the solution of three and four term linear equations in the conjugates of a Pisot number.

Tuesday, October 21, 2014 — 10:30 PM EDT

In this second of several lectures, I will present a polynomial-time consistency checking algorithm for constraint networks over a finite template having a Taylor polymorphism. I conjecture that the algorithm is complete for Maltsev templates, and in future lectures will provide evidence supporting this conjecture.

Tuesday, October 21, 2014 — 3:30 PM EDT

We continue through Melnikov's survey paper on Computable

Abelian Groups. We use the effective analysis of linear independence

(discussed before by Sam) to characterize computable categoricity. We

go through the proof that "Every computable torsion-free

Tuesday, October 21, 2014 — 1:00 PM EDT

Monday, October 20, 2014 — 4:00 PM EDT

Friday, October 17, 2014 — 3:30 PM EDT

Friday, October 17, 2014 — 1:00 PM EDT

Ehsaan gave me a list of five or six things he wants me to talk about this Friday. The list includes: the definition of ringed spaces, locally ringed spaces, schemes; an example of a non-affine scheme, etc. I plan to talk about these things.

Thursday, October 16, 2014 — 1:30 PM EDT

Wednesday, October 15, 2014 — 3:30 PM EDT

Wednesday, October 15, 2014 — 2:30 PM EDT

Wednesday, October 15, 2014 — 1:30 PM EDT

Continuing where Philip left off, we will finish talking about K0of local rings and Dedekind domains.

Tuesday, October 14, 2014 — 1:00 PM EDT

Tuesday, October 14, 2014 — 10:30 AM EDT

Friday, October 10, 2014 — 3:30 PM EDT

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