I am interested in problems in combinatorics,
and number theory.
I was recently a postdoc at the
University of Washington where my mentor was Farbod Shokrieh.
Before that I was a graduate student at the University of Michigan
where my advisors were David Speyer
and Jeff Lagarias.
I was on the job market in fall 2019.
Before graduate school I studied math at
and the Math in Moscow program.
email: hrichman (at) alum (dot) mit (dot) edu
"Dilated floor functions that commute,"
J. C. Lagarias and T. Murayama.
American Math. Monthly 123.10 (2016), pp. 1033-1038.
"Dilated floor functions having nonnegative commutator I. Positive and mixed sign dilations,"
Acta Arithmetica 187.3 (2019), pp. 271-299.
"Dilated floor functions having nonnegative commutator II. Negative dilations,"
Acta Arithmetica 196.2 (2020), pp. 163-186.
"The distribution of Weierstrass points on a tropical curve,"
"Derangements and the p-adic incomplete gamma function,"
accepted for publication in the Transactions of the American Mathematical Society.
"Counting tripods on the torus,"
Jayadev S. Athreya and David Aulicino,
accepted for publication in the Arnold Mathematical Journal.
"The tropical Manin-Mumford conjecture,"
"The floor quotient partial order,"
"Origami hexagon deformations and the flip graph,"
coauthored with Y. Liu,
Notes and Presentations
"Matchings in convergent graph sequences," March 2017
"Moduli space of tropical curves," June 2017
"Local Gauss-Lucas theorem," July 2017
"Dilated floor functions having nonnegative commutator," July 2017
"Descartes' rule and beyond," September 2017
"Distribution of tropical Weierstrass points," September 2018
"Weierstrass points and torsion points on tropical curves"
"Continuity over p-adic numbers,"
"Derangements and p-adic incomplete gamma function,"
"Uniform bounds on tropical torsion points,"
Quotes about math
built by Amanda Ghassaei
guidelines provided by Acta Arithmetica
Math Subject Classification
browse and search, resource from zbMATH
Online Encyclopedia of Integer Sequences
database and search engine for combinatorial statistics and maps
Why should I do math?
Reasons by Tao Lin
(43., 35., 31., 10., 28., 8., 11., 14., 41., 26., 21., 18.)