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Isomorphism problems for Markov shifts and expanding endomorphisms of the circle

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Cowen, Robert (1987) Isomorphism problems for Markov shifts and expanding endomorphisms of the circle. PhD thesis, University of Warwick.

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Official URL: http://webcat.warwick.ac.uk/record=b1452031~S15

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Abstract

This thesis consists of two independent chapters.

Each chapter has its own detailed introduction and references.

In Chapter one we give new complete topological conjugacy invariants for finite state stationary Markov chains. These new invariants give a classification up to a topological conjugacy which preserves certain equilibrium states. We use our new invariants to investigate Williams' problem. Finally, we generalise the topological classification of onesided finite state stationary Markov chains to give a classification up to block-isomorphism.

In Chapter two we investigate a problem posed by Shub and Sullivan on the classification of real analytic Lebesgue measure-preserving expanding endomorphisms of the circle. We introduce a new Jacobian invariant that enables us to study the phase factor. Finally, we introduce complete isomorphism invariants but these invariants have a measure-theoretic and topological nature.

Item Type: Thesis (PhD)
Subjects: Q Science > QA Mathematics
Library of Congress Subject Headings (LCSH): Isomorphisms (Mathematics), Markov processes, Endomorphisms (Group theory)
Official Date: January 1987
Dates:
DateEvent
January 1987UNSPECIFIED
Institution: University of Warwick
Theses Department: Mathematics Institute
Thesis Type: PhD
Publication Status: Unpublished
Supervisor(s)/Advisor: Parry, William
Extent: iii, 83 leaves
Language: eng

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