I am a Data Scientist with a Ph.D. in Mathematics from the University of Kansas where I studied Combinatorics.

My Personal Webpage: http://kenduna.com
My Github: http://github.com/KenDuna
My LinkedIn: http://www.linkedin.com/in/ken-duna-3b9474162/

I have a particular interest in Linear Algebre and Galois Theory as you can see below.

Some of my favorite answers to questions:

Splitting Field of $x^9-x$ over $\mathbb{Z}_3$.
Characterizing submatrices that result in diagonalizability.
Solvability by radicals of $x^n - n$.
Some basic Galois Theory.
Using Sylow Theorems.
Show that the adjoint is a polynomial of the transformation.
The difference between the inner and outer direct sum.
Normal + Upper Triangular = Diagonal.
At least one of $A^tA \text{ or } AA^t$ is singular if $A$ is not square.