Diffusion with stochastic resetting of interacting particles emerging from a model of population genetics
- 13 December 2021
- journal article
- research article
- Published by IOP Publishing in Journal of Physics A: Mathematical and Theoretical
- Vol. 55 (1), 014003
- https://doi.org/10.1088/1751-8121/ac3cdd
Abstract
In this paper, we put forward a connection between diffusion with resetting and a certain extension of Ohta-Kimura model, inspired on what was carried out in Da Silva and Fragoso (2018 J. Phys. A: Math. Theor. 51 505002). The contribution is twofold: (1) we derive a new extension of Ohta-Kimura model, dubbed here new extended version of Ohta-Kimura ladder model (NOKM) which bears a strong liaison with the so-called jump-type Fleming-Viot process. The novelty here, when we compare with the classical Ohta-Kimura model, is that we now have an operator which allows simultaneous interaction among many individuals. It has to do with a generalized branching mechanism i.e. m individual types extinguish and one individual type splits into m copies. The system of evolution equations arising from NOKM can be seen as a system of n-dimensional Kolmogorov forward equations (or Fokker-Planck equations). The analysis requires an amenable armory of concepts and mathematical technique to analyze some relevant issues such as correlation, indistinguishability of individuals and stationarity; (2) nudged by the ideas brought to bear in Da Silva and Fragoso (2018 J. Phys. A: Math. Theor. 51 505002), we advance in this agenda here by making an initial incursion on the connection between diffusion with resetting and the NOKM. The connection which relies on the similarities between the models allows, in some cases, that relevant results obtained for one model can be translated to the other model framework by taking advantage of the technique used to derive a result in one of the models. Through the development of the population genetic model and its reinterpretation in terms of diffusion with stochastic resetting, we show an invariance property of the correlation between two interacting particles that reset at a time-inhomogeneous resetting rate. Pushing forward the ideas we obtain the stationary state of a new model for an n-particle system under an anisotropic diffusion with resetting. Although the results using this approach are of recent vintage, we believe that this avenue of research seems to be very encouraging.Keywords
Funding Information
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
This publication has 41 references indexed in Scilit:
- Absolutely continuous measure for a jump-type Fleming–Viot processStatistics & Probability Letters, 2012
- Diffusion with optimal resettingJournal of Physics A: Mathematical and Theoretical, 2011
- Invariant measures for jump-type Fleming–Viot processesStatistics & Probability Letters, 2006
- A note on jump-type Fleming–Viot processesStatistics & Probability Letters, 2006
- Wandering Random Measures in the Fleming-Viot ModelThe Annals of Probability, 1982
- The number of alleles in electrophoretic experimentsTheoretical Population Biology, 1980
- The Carrying Dimension of a Stochastic Measure DiffusionThe Annals of Probability, 1979
- Wandering distributions and the electrophoretic profile. IITheoretical Population Biology, 1976
- Wandering distributions and the electrophoretic profileTheoretical Population Biology, 1975
- A model of mutation appropriate to estimate the number of electrophoretically detectable alleles in a finite populationGenetics Research, 1973