[HTML][HTML] Occupation densities in solving exit problems for Markov additive processes and their reflections

J Ivanovs, Z Palmowski - Stochastic Processes and their Applications, 2012 - Elsevier
This paper solves exit problems for spectrally negative Markov additive processes and their
reflections. So-called scale matrix, which is a generalization of the scale function of a …

First passage of a Markov additive process and generalized Jordan chains

DA Bernardo, J Ivanovs, O Kella… - Journal of Applied …, 2010 - cambridge.org
In this paper we consider the first passage process of a spectrally negative Markov additive
process (MAP). The law of this process is uniquely characterized by a certain matrix function …

[BOOK][B] One-sided Markov additive processes and related exit problems

J Ivanovs - 2011 - dare.uva.nl
The Compound Poisson Process (CPP) is one of the most basic and popular models in
applied probability. It can represent a workload arrival process, where customers (or …

Markov-modulated Brownian motion with two reflecting barriers

J Ivanovs - Journal of Applied Probability, 2010 - cambridge.org
We consider a Markov-modulated Brownian motion reflected to stay in a strip [0, B]. The
stationary distribution of this process is known to have a simple form under some …

[HTML][HTML] Singularities of the matrix exponent of a Markov additive process with one-sided jumps

J Ivanovs, O Boxma, M Mandjes - Stochastic processes and their …, 2010 - Elsevier
We analyze the number of zeros of det (F (α)), where F (α) is the matrix exponent of a Markov
Additive Process (MAP) with one-sided jumps. The focus is on the number of zeros in the …

A ruin model with a resampled environment

C Constantinescu, G Delsing, M Mandjes… - Scandinavian …, 2020 - Taylor & Francis
This paper considers a Cramér–Lundberg risk setting, where the components of the
underlying model change over time. We allow the more general setting of the cumulative …

Fluctuation identities for omega-killed spectrally negative Markov additive processes and dividend problem

I Czarna, A Kaszubowski, S Li… - Advances in Applied …, 2020 - cambridge.org
In this paper, we solve exit problems for a one-sided Markov additive process (MAP) which
is exponentially killed with a bivariate killing intensity dependent on the present level of the …

A quadratically convergent algorithm for first passage time distributions in the Markov-modulated Brownian motion

S Ahn, V Ramaswami - Stochastic Models, 2017 - Taylor & Francis
ABSTRACT A Markov-modulated Brownian motion (MMBM) is a substantial generalization
of the classical Brownian Motion and is obtained by allowing the Brownian parameters to be …

Omega bankruptcy for different Lévy models

A Kaszubowski - Śląski Przegląd Statystyczny, 2019 - cejsh.icm.edu.pl
In this paper, we consider the so-called Omega bankruptcy model, which can be seen as an
alternative to the classical approach to ruin. In contrast to the classical model, we allow the …

Fluctuation identities for omega-killed Markov additive processes and dividend problem

I Czarna, A Kaszubowski, S Li, Z Palmowski - arxiv preprint arxiv …, 2018 - arxiv.org
In this paper we solve the exit problems for an one-sided Markov additive process (MAP)
which is exponentially killed with a bivariate killing intensity $\omega (\cdot,\cdot) …