UBC

Thu 24 Apr 2014, 4:00pm
Symbolic Dynamics and Ergodic Theory Seminar
Math Annex 1102

Computing entropy and pressure of stationary Z^d Markov random fields

Math Annex 1102
Thu 24 Apr 2014, 4:00pm5:30pm
Abstract
For any stationary mZ^d Gibbs measure that satisfies strong spatial mixing, we obtain sequences of upper and lower approximations that converge to its entropy. In the case d=2, these approximations are efficient in the sense that they are accurate to within epsilon and can be computed in time polynomial in 1/epsilon. The method is extended to approximate pressure of Gibbs interactions. Joint work with Ronnie Pavlov.
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