# Justin Chen

I am currently a Hale postdoc at
Georgia Tech, under
Anton Leykin.
My research interests include commutative algebra, (numerical) algebraic geometry and combinatorics.

I received a Ph.D. in Math in 2018 from the
University of California, Berkeley.
My advisor was
David Eisenbud.

I received a B.S. in Math in 2012 from
Purdue University,
where I first learned commutative algebra from
Bernd Ulrich.

You can reach me at firstname.lastname AT math.gatech.edu. My CV can be found
here. My thesis is available here.

### Papers (on arXiv)

Noetherian operators and primary decomposition (joint with Marc Härkönen, Robert Krone and Anton Leykin), arXiv:2006.13881

Avoidance and Absorbance (joint with Abolfazl Tarizadeh), arXiv:2006.12332

The 4 × 4 orthostochastic variety (joint with Papri Dey), arXiv:2001.10691

Free resolutions of function classes via order complexes (joint with Chris Eur, Greg Yang and Mengyuan Zhang), arXiv:1909.02159

Computing symmetric determinantal representations (joint with Papri Dey), arXiv:1905.07035, code available at GitHub

Computing unit groups of curves (joint with Sameera Vemulapalli and Leon Zhang), arXiv:1808.02742

Flat maps to and from Noetherian rings, arXiv:1711.04958

Infinite prime avoidance, arXiv:1710.05496

Surjections of unit groups and semi-inverses, arXiv:1710.05492

Mono: an algebraic study of torus closures, arXiv:1710.04614

Closed points on schemes, arXiv:1708.06494

Numerical Implicitization (joint with Joe Kileel), arXiv:1610.03034, code available at GitHub

Invertible sums of matrices, arXiv:1603.06696

Matroids: A Macaulay2 package, arXiv:1511.04618, code available at GitHub

Graded-irreducible modules are irreducible (joint with Youngsu Kim), arXiv:1508.07518

### Teaching at Georgia Tech

*New: *Math 6122, Commutative Algebra, spring 2021
Math 1553, introduction to linear algebra, fall 2020
Math 4108, abstract algebra II, spring 2020
Math 1553, introduction to linear algebra, fall 2019
Math 3406, a second course in linear algebra, spring 2019