Japanese Journal of Mathematics

, Volume 11, Issue 2, pp 151–218 | Cite as

Asymptotic theory of path spaces of graded graphs and its applications

Takagi Lectures

Abstract

The survey covers several topics related to the asymptotic structure of various combinatorial and analytic objects such as the path spaces in graded graphs (Bratteli diagrams), invariant measures with respect to countable groups, etc. The main subject is the asymptotic structure of filtrations and a new notion of standardness. All graded graphs and all filtrations of Borel or measure spaces can be divided into two classes: the standard ones, which have a regular behavior at infinity, and the other ones. Depending on this property, the list of invariant measures can either be well parameterized or have no good parametrization at all. One of the main results is a general standardness criterion for filtrations. We consider some old and new examples which illustrate the usefulness of this point of view and the breadth of its applications.

Mathematics Subject Classification (2010)

37A55 60B05 52A23 

Keywords and phrases

graded graph Markov compactum cotransition probability central measure filtration standardness limit shape 

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© The Mathematical Society of Japan and Springer Japan 2016

Authors and Affiliations

  1. 1.St. Petersburg Department of Steklov Institute of MathematicsMathematical Department of St. Petersburg State University, Moscow Institute for Information Transmission ProblemsSt. PetersburgRussia

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