4.0 Article

Improved Mixing Rates of Directed Cycles by Added Connection

Journal

JOURNAL OF THEORETICAL PROBABILITY
Volume 32, Issue 2, Pages 684-701

Publisher

SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10959-018-0861-x

Keywords

Mixing rate; Random graphs; Non-reversibility

Funding

  1. NKFIH (National Research, Development and Innovation Office) [PD 121107]
  2. DYSCO Network (Dynamical Systems, Control, and Optimization) - Interuniversity Attraction Poles Programme
  3. Concerted Research Action (ARC) of the French Community of Belgium

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We investigate the mixing rate of a Markov chain where a combination of long distance edges and non-reversibility is introduced. As a first step, we focus here on the following graphs: starting from the cycle graph, we select random nodes and add all edges connecting them. We prove a square-factor improvement of the mixing rate compared to the reversible version of the Markov chain.

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