Partially Observable Systems and Quotient Entropy via Graphs
Leonhard Horstmeyer and Sharwin Rezagholi
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Submission date: 08. Jul. 2019 (revised version: November 2020)
MSC-Numbers: 37B10, 37B40, 37C15, 54H20
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We consider the category of partially observable dynamical systems, to which the entropy theory of dynamical systems extends functorially. This leads us to introduce quotient-topological entropy. We discuss the structure that emerges. We show how quotient entropy can be explicitly computed by symbolic coding. To do so, we make use of the relationship between the category of dynamical systems and the category of graphs, a connection mediated by Markov partitions and topological Markov chains.