activity
20072022
most citedOrthogonal polynomial kernels and canonical correlations for Dirichlet measures

22 citations · 78 across the 19 of their papers we have counts for

collaborators

23 papers

math.PR2022

Coalescence and sampling distributions for Feller diffusions

Conrad J. Burden, Robert C. Griffiths

Consider the diffusion process defined by the forward equation for and , with an…

math.PR2022

A class of non-reversible hypercube long-range random walks and Bernoulli autoregression

Andrea Collevecchio, Robert C. Griffiths

We study a large class of long-range random walks which take values on the vertices of an N dimensional hypercube. These processes are connected with multivariate Bernoulli autoreg…

math.PR2021

The stationary and quasi-stationary properties of neutral multi-type branching process diffusions

Conrad J. Burden, Robert C. Griffiths

The stationary asymptotic properties of the diffusion limit of a multi-type branching process with neutral mutations are studied. For the critical and subcritical processes the int…

math.PR2021★ 2 cited

Dual process in the two-parameter Poisson-Dirichlet diffusion

Robert C. Griffiths, Matteo Ruggiero, Dario Spanò +1

The two-parameter Poisson-Dirichlet diffusion takes values in the infinite ordered simplex and extends the celebrated infinitely-many-neutral-alleles model, having a two-parameter…

math.PR2020★ 1 cited

Three steps mixing for general random walks on the hypercube at criticality

Andrea Collevecchio, Robert Griffiths

We introduce a general class of random walks on the -hypercube, study cut-off for the mixing time, and provide several types of representation for the transition probabilities.…

math.PR2019

Matching marginals and sums

Robert Griffiths, Kais Hamza

For a given set of random variables we seek as large a family as possible of random variables such that the marginal laws and the laws of the sums…