4 papers
math.PR2024
Rank fluctuations of matrix products and a moment method for growing groups
Hoi H. Nguyen, Roger Van Peski
We consider the cokernel of a product of independent random integer matrices with iid entries from generic nondegenerate dis…
math.CO2024
Symmetric functions and the explicit moment problem for abelian groups
Roger Van Peski
Recently, Sawin and Wood (arXiv:math/2210.06279) proved a formula for the distribution of a random abelian group in terms of its -moments $\mathbb{E} [\#\operatorname{Sur}(G…
math.PR2023
Local limits in -adic random matrix theory
Roger Van Peski
We study the distribution of singular numbers of products of certain classes of -adic random matrices, as both the matrix size and number of products go to simultaneous…
math.PR2023
What is a -adic Dyson Brownian motion?
Roger Van Peski
We consider the singular numbers of a certain explicit continuous-time Markov jump process on , which we argue gives the closest -adic analogue of m…