5 M ay 2 00 9 Strict sub - solutions and Ma ñ e potential in discrete weak KAM theory
نویسنده
چکیده
In this paper, we explain some facts on the discrete case of weak KAM theory. In that setting, the Lagrangian is replaced by a cost c : X×X → R, on a“reasonable”space X. This covers for example the case of periodic time-dependent Lagrangians. As is well known, it is possible in that case to adapt most of weak KAM theory. A major difference is that critical subsolutions are not necessarily continuous. We will show how to define a Mañe potential. In contrast to the Lagrangian case, this potential is not continuous. We will recover the Aubry set from the set of continuity points of the Mañe potential, and also from critical sub-solutions.
منابع مشابه
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تاریخ انتشار 2009