Keith Conrad

Penrose tiles on Keskuskatu. They have been there since 2014, after five years of planning. A video about the installation is here. Yrjö Rossi, who suggested the tiles, talks in the video at 0:48.

Job coordinates

Math Dept. UConn,
341 Mansfield Road Unit 1009
Storrs, CT 06269-1009

Office: MONT 234

E-mail: kconrad at math dot uconn dot edu.

How to reach the UConn math department by car.

Some mathematics

Published papers

Expository papers

UConn Math Club


Number theory web


NUMDAM, in english or french

The GTM test

Greek alphabet review for reading and writing in math

A parody of Green Eggs and Ham by Kevin Wald

A song parody.

Another song.

Analysis in popular media

Read very carefully the course description of MAT 311 here . (This is not made up.)

An interesting lesson in probability. The start of this page indicates the story is not made up.

Another lesson in probability. (The event described there took place on March 3, 1983. Go to the end of this page for more.)

Current courses

Math 1131

Math 3230

Summer program courses

Patterns in Primes (Ross program, Summer 2016)

Modular Forms (Dubna, Summer 2016):, Lecture 1, Lecture 2, Lecture 3, Lecture 4.

Primality tests (Dubna, Summer 2015):, Lecture 1, Lecture 2, Lecture 3, Lecture 4.
(In the fourth lecture a team of videographers appears a little after the 43:00 mark and then sporadically through the rest of the lecture. They filmed me and the students on behalf of one of the sponsors of the summer school.)

Introduction to p-adic Numbers (Dubna, Summer 2014):, Lecture 1, Lecture 2, Lecture 3, Lecture 4.

The ABC-Conjecture (Dubna, Summer 2013): , Lecture 1, Lecture 2, Lecture 3, Lecture 4.

Analogies between integers and polynomials (Dubna, Summer 2012):, Lecture 1, Lecture 2, Lecture 3, Lecture 4.

What is a Reciprocity Law? (Yaroslavl, Summer 2011): Lecture 1, 2, 3, 4

Number Theory in Quadratic Fields (Lisbon, Summer 2011)

Diophantine Equations (Ross program, Summer 2008)

Elliptic Curves and Arithmetic Progressions of Squares (Ross program, Summer 2007)

Sums of squares (USA/Canada Mathcamp, Summer 2005)

Quaternion algebras (Ross program, Summer 2004)

Analogies between integers and polynomials (Ross program, Summer 2003)

Zeta and L-functions (PROMYS program, Summer 2000)

Some pictures

If you are an amateur and think you solved a famous math problem, look here

Reasons to be Cautious in Mathematics

Some links