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Almost-additive thermodynamic formalism for countable Markov shifts

	Hold Date	2012-07-20 15:00～2012-07-20 17:00

	Place	seminar room 7, Faculty of Mathematics building, Ito Campus

	Object person

	Speaker	Yuki YAYAMA (Universidad del BíoBío)

summary：
We introduce a definition of pressure for almost additive sequence of
continuous functions defined over a countable Markov shifts. The variational
principal is proved. Under certain assumptions, we prove the existence
of Gibbs equilibrium state and study the property of the equilibrium measures.
This is a joint work with Godofredo Iommi.