Si Tang

activity

20152020

most citedExtreme eigenvalues of sparse, heavy tailed random matrices

1 citations · 1 across the 2 of their papers we have counts for

collaborators

3 papers

math.PR2020

On the minimal drift for recurrence in the frog model on $d$ -ary trees

Chengkun Guo, Si Tang, Ningxi Wei

We study the recurrence of one-per-site frog model $FM (d, p)$ on a $d$ -ary tree with drift parameter $p \in [0, 1]$ , which determines the bias of frogs' random walks. We are i…

math.PR2019

Occupation densities of Ensembles of Branching Random Walks

Si Tang, Steven P. Lalley

We study the limiting occupation density process for a large number of critical and driftless branching random walks. We show that the rescaled occupation densities of $\lfloor sN\…

math.PR2015★ 1 cited

Extreme eigenvalues of sparse, heavy tailed random matrices

Antonio Auffinger, Si Tang

We study the statistics of the largest eigenvalues of $p \times p$ sample covariance matrices $Σ_{p, n} = M_{p, n} M_{p, n}^{*}$ when the entries of the $p \times n$ matrix $M_{p, n}$ a…

On the minimal drift for recurrence in the frog model on d-ary trees

Occupation densities of Ensembles of Branching Random Walks

Extreme eigenvalues of sparse, heavy tailed random matrices

On the minimal drift for recurrence in the frog model on $d$ -ary trees