4 papers
Quasi-stationary distributions of non-absorbing Markov chains
Roberto Fernandez, Francesco Manzo, Matteo Quattropani +1
We consider reversible ergodic Markov chains with finite state space, and we introduce a new notion of quasi-stationary distribution that does not require the presence of any absor…
Conditioned, quasi-stationary, restricted measures and escape from metastable states
Roberto Fernandez, Francesco Manzo, Francesca Nardi +2
We study the asymptotic hitting time of a family of Markov processes to a target set when the process starts from a trap defined by very general prope…
Fast mixing for the low temperature 2d Ising model through irreversible parallel dynamics
Paolo Dai Pra, Benedetto Scoppola, Elisabetta Scoppola
We study metastability and mixing time for a non-reversible probabilistic cellular automaton. With a suitable choice of the parameters, we first show that the stationary distributi…
Asymptotically exponential hitting times and metastability: a pathwise approach without reversibility
R. Fernandez, F. Manzo, F. R. Nardi +1
We study the hitting times of Markov processes to target set , starting from a reference configuration or its basin of attraction. The configuration can correspond t…