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Grassmannian reduction of cucker-smale systems and dynamical opinion games

Abstract: In this note we study a new class of alignment models with selfpropulsion and Rayleigh-type friction forces, which describes the collective behavior of agents with individual characteristic parameters. We describe the long time dynamics via a new method which allows us to reduce analysis from the multidimensional system to a simpler family of two-dimensional systems parametrized by a proper Grassmannian. With this method we demonstrate exponential alignment for a large (and sharp) class of initial velocity configurations confined to a sector of opening less than ?. In the case when characteristic parameters remain frozen, the system governs dynamics of opinions for a set of players with constant convictions. Viewed as a dynamical non-cooperative game, the system is shown to possess a unique stable Nash equilibrium, which represents a settlement of opinions most agreeable to all agents. Such an agreement is furthermore shown to be a global attractor for any set of initial opinions.

 Fuente: Discrete and Continuous Dynamical Systems - Series A, 2021, 41(12), 5765-5787

 Publisher: American Institute of Mathematical Sciences

 Publication date: 01/12/2021

 No. of pages: 23

 Publication type: Article

 DOI: 10.3934/dcds.2021095

 ISSN: 1553-5231,1078-0947

 Publication Url: https://doi.org/10.3934/dcds.2021095

Authorship

REYNOLDS, DAVID N.

SHVYDKOY, ROMAN