activity
20192023
most citedRandom walk on a quadrant: mapping to a one-dimensional level-dependent Quasi-Birth-and-Death process (LD-QBD)

1 citations · 3 across the 6 of their papers we have counts for

collaborators

6 papers

math.PR2023★ 1 cited

Sensitivity analysis of Quasi-Birth-and-Death processes

Anna Aksamit, Małgorzata M. O'Reilly, Zbigniew Palmowski

We perform the sensitivity analysis of a level-dependent QBD with a particular focus on applications in modelling healthcare systems.

math.PR2023★ 1 cited

Random walk on a quadrant: mapping to a one-dimensional level-dependent Quasi-Birth-and-Death process (LD-QBD)

Małgorzata M. O'Reilly, Zbigniew Palmowski, Anna Aksamit

We consider a neighbourhood random walk on a quadrant, , with state space \begin{eqnarray*} \mathcal{S}&=&\{(n,m,i):n,m=0,1,2,\ldots;i=1,2,\ldots,…

q-bio.PE2021

The Shape of Phylogenies Under Phase-Type Distributed Times to Speciation and Extinction

Albert Ch. Soewongsono, Barbara R. Holland, Małgorzata M. O'Reilly

Phylogenetic trees are widely used to understand the evolutionary history of organisms. Tree shapes provide information about macroevolutionary processes. However, macroevolutionar…

math.PR2020

Matrix-Analytic Methods for the analysis of Stochastic Fluid-Fluid Models

Nigel G. Bean, Małgorzata M. O'Reilly, Zbigniew Palmowski

Stochastic fluid-fluid models (SFFMs) offer powerful modeling ability for a wide range of real-life systems of significance. The existing theoretical framework for this class of mo…

math.PR2019★ 1 cited

Yaglom limit for Stochastic Fluid Models

Nigel G. Bean, Małgorzata M. O'Reilly, Zbigniew Palmowski

In this paper we provide the analysis of the limiting conditional distribution (Yaglom limit) for stochastic fluid models (SFMs), a key class of models in the theory of matrix-anal…

math.PR2019

A discontinuous Galerkin method for approximating the stationary distribution of stochastic fluid-fluid processes

Nigel Bean, Giang T. Nguyen, Malgorzata M. O'Reilly +1

Introduced by Bean and O'Reilly (2014), a stochastic fluid-fluid process is a Markov processes , where the first fluid is driven by the Markov c…