2 papers
math.GR2021
On the Covering Number of
Michael Epstein
The covering number, , of a finite, noncyclic group is the least positive integer such that is the union of proper subgroups. Here we investigate the covering…
math.PR2018
The lemniscate tree of a random polynomial
Michael Epstein, Boris Hanin, Erik Lundberg
To each generic complex polynomial there is associated a labeled binary tree (here referred to as a "lemniscate tree") that encodes the topological type of the graph of $|p(…