2022
DOI: 10.1007/s13235-021-00410-2
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Finite State Graphon Games with Applications to Epidemics

Abstract: We consider a game for a continuum of non-identical players evolving on a finite state space. Their heterogeneous interactions are represented with a graphon, which can be viewed as the limit of a dense random graph. A player’s transition rates between the states depend on their control and the strength of interaction with the other players. We develop a rigorous mathematical framework for the game and analyze Nash equilibria. We provide a sufficient condition for a Nash equilibrium and prove existence of solu… Show more

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Cited by 16 publications
(4 citation statements)
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“…In addition, while sociality strategies are modeled here through the rate of well-mixed interactions that individuals have, it is also reasonable to consider how the benefits and costs of social interaction can impact how individuals choose neighbors in a network-structured population. Tools such as pair approximations [52,53] or graphons [54][55][56] can be used to model the spread of couple contagions on graph-structured populations, and evolutionary questions could also explore the evolution of modular network structure in the presence of infectious disease [57][58][59].…”
Section: Discussionmentioning
confidence: 99%
“…In addition, while sociality strategies are modeled here through the rate of well-mixed interactions that individuals have, it is also reasonable to consider how the benefits and costs of social interaction can impact how individuals choose neighbors in a network-structured population. Tools such as pair approximations [52,53] or graphons [54][55][56] can be used to model the spread of couple contagions on graph-structured populations, and evolutionary questions could also explore the evolution of modular network structure in the presence of infectious disease [57][58][59].…”
Section: Discussionmentioning
confidence: 99%
“…A standard graphon W is formally defined as a symmetric, measurable function W : [0, 1] 2 → [0, 1] which yields the limit for sequences of undirected and unweighted graphs. Some papers such as [7] and [14] interpret the probability W (x, y) of an edge between nodes x and y as the "weight" of this edge. However, each realization of this random graph yields an unweighted graph.…”
Section: Colored Digraphonsmentioning
confidence: 99%
“…Although we focus here on the continuous-state space setting, the same strategy can be applied to finite-state MFGs; see, e.g., [16,15].…”
Section: Deep Learning For Mckean-vlasov Fbsde Systemsmentioning
confidence: 99%