WJD Open Notebook

Math PhD Exams

Exams in Group Theory, Ring Theory, Complex Analysis, and Real Analysis

January 2, 2019 Reading time: about 1 minute (322 words).

🔗 Comprehensive Exams in Mathematics

Congruences of Partial Algebras

I don't always use recursion; but when I do, I don't always use recursion.

April 6, 2017 Reading time: less than a minute (162 words).

Conferences in Algebra

April 1, 2017 Reading time: less than a minute (152 words).

I started a GitHub repository called UniversalAlgebra/Conferences in an effort to keep up with the vast number of meetings in these areas and help make summer travel plans accordingly.

The UniversalAlgebra/Conferences repository is simply a list of links to the conferences listed.

java on linux

December 6, 2016 Reading time: about 2 minutes (427 words).

This post details the steps I use to update or install the latest version of the Java Development Kit (JDK) on my Linux systems.

The Palfy-Saxl Problem

February 13, 2015 Reading time: about 1 minute (333 words).

Suppose the lattice shown below is a congruence lattice of an algebra.

Conjecture: If the three $\alpha_i$'s pairwise permute, then all pairs in the lattice permute.