Mathematics – Dynamical Systems
Scientific paper
2005-09-05
Mathematics
Dynamical Systems
11 pages
Scientific paper
In this paper we present a new approach to studying g-measures which is based upon local absolute continuity. We extend the result in [11] that square summability of variations of g-functions ensures uniqueness of g-measures. The first extension is to the case of countably many symbols. The second extension is to some cases where $g \geq 0$, relaxing the earlier requirement in [11] that inf g>0.
Johansson Anders
Öberg Anders
Pollicott Mark
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