| Título: | Stochastic Order and Attractiveness for Particle Systems with Multiple Births, Deaths and Jumps |
| Autores: | Borrello, Davide; Università di Milano and Universié de Rouen |
| Fecha: | 2011-01-01 |
| Publicador: | Electronic journal of probability |
| Fuente: |
 |
| Tipo: |
Peer-reviewed Article |
| Tema: |
Stochastic order; attractiveness; interacting particle systems; epidemic model; multitype contact process 60K35; 82C22 |
| Descripción: | An approach to analyse the properties of a particle system is to compare it with different processes to understand when one of them is larger than other ones. The main technique for that is coupling, which may not be easy to construct. We give a characterization of stochastic order between different interacting particle systems in a large class of processes with births, deaths and jumps of many particles per time depending on the configuration in a general way: it consists in checking inequalities involving the transition rates. We construct explicitly the coupling that characterizes the stochastic order. As a corollary we get necessary and sufficient conditions for attractiveness. As an application, we first give the conditions on examples including reaction-diffusion processes, multitype contact process and conservative dynamics and then we improve an ergodicity result for an epidemic model. |
| Idioma: | No aplica |
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