Chaos最新文献_第9页

Evolution of cooperation under threshold public goods game.

IF 2.7 2区数学

Chaos Pub Date : 2025-02-01 DOI: 10.1063/5.0256927

Liyan Gao, Qiuhui Pan, Mingfeng He

{"title":"Evolution of cooperation under threshold public goods game.","authors":"Liyan Gao, Qiuhui Pan, Mingfeng He","doi":"10.1063/5.0256927","DOIUrl":"https://doi.org/10.1063/5.0256927","url":null,"abstract":"When the number of cooperators does not reach the collective target, resulting in the collective risk social dilemma, the self-organizing behavior of the group leads to the loss of collective interest and the government intervention leads to the increase of collective interest. For these two situations, we study the evolution of cooperation under threshold public goods game in well-mixed population. The results show that the introduction of the threshold makes it possible to generate complex dynamics with two interior equilibria in the replication equation. For self-organizing behavior, increasing the threshold is a double-edged sword. Although raising the threshold may increase the level of cooperation, the risk of dominance of defection also increases. For government intervention behavior, increasing the threshold significantly promotes cooperation. The common result is that individuals tend to free-ride when the group size increases. In addition, the greater the impact of the two behaviors on collective interest, the more conducive to promoting cooperation. When there are fewer initial cooperators, the government should intervene in time to generate cooperation. When there are more initial cooperators, self-organizing behavior is more conducive to attracting cooperators than government intervention. We hope that the model and results proposed in this paper can contribute to addressing the challenges posed by global issues such as climate change and the degradation of the ecological environment.","PeriodicalId":9974,"journal":{"name":"Chaos","volume":"35 2","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143390319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influences of individual interaction validity on coupling propagation of information and disease in a two-layer higher-order network.

IF 2.7 2区数学

Chaos Pub Date : 2025-02-01 DOI: 10.1063/5.0253301

Ming Li, Liang'an Huo

{"title":"Influences of individual interaction validity on coupling propagation of information and disease in a two-layer higher-order network.","authors":"Ming Li, Liang'an Huo","doi":"10.1063/5.0253301","DOIUrl":"https://doi.org/10.1063/5.0253301","url":null,"abstract":"All complex phenomena in complex systems arise from individual interactions, which include pairs and higher-order forms. Research indicates that various physical and mental factors can impact the validity of these interactions, potentially preventing diffusion phenomena. This paper explores the influences of the interaction validity on coupling propagation of information and disease in a two-layer higher-order network. Interaction validity is defined using a threshold function based on the individual activity level. The dynamic evolution equations of the nodes are derived by using the microscopic Markov chain approach, and the transmission threshold of the disease is determined. Extensive numerical simulations on both artificial and real-world networks reveal that higher-order interactions significantly enhance the diffusion of disease and related information. Reducing individual activity levels diminishes interaction validity, thereby restricting disease transmission. Moreover, optimizing disease control can be achieved by increasing public activity in virtual social networks while reducing it in physical contact networks. Strengthening interlayer coupling enhances self-protective measures, thus amplifying the suppression of disease by information.","PeriodicalId":9974,"journal":{"name":"Chaos","volume":"35 2","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143499596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A recursive method to find the extreme and superstable curves in the parameter space of dissipative one-dimensional mappings.

IF 2.7 2区数学

Chaos Pub Date : 2025-02-01 DOI: 10.1063/5.0239022

Diogo Ricardo da Costa, Luam Silva de Paiva, Julia G S Rocha, Joelson D V Hermes, Matheus Hansen, Ricardo Luiz Viana, Iberê Luiz Caldas, Rene O Medrano-T

{"title":"A recursive method to find the extreme and superstable curves in the parameter space of dissipative one-dimensional mappings.","authors":"Diogo Ricardo da Costa, Luam Silva de Paiva, Julia G S Rocha, Joelson D V Hermes, Matheus Hansen, Ricardo Luiz Viana, Iberê Luiz Caldas, Rene O Medrano-T","doi":"10.1063/5.0239022","DOIUrl":"https://doi.org/10.1063/5.0239022","url":null,"abstract":"This paper presents a recursive method for identifying extreme and superstable curves in the parameter space of dissipative one-dimensional maps. The method begins by constructing an Archimedean spiral with a constant arc length. Subsequently, it identifies extreme and superstable curves by calculating an observable ψ. The spiral is used to locate a region where ψ changes sign. When this occurs, a bisection method is applied to determine the first point on the desired superstable or extreme curve. Once the initial direction is established, the recursive method identifies subsequent points using an additional bisection method, iterating the process until the stopping conditions are met. The logistic-Gauss map demonstrates each step of the method, as it exhibits a wide variety of periodicity structures in the parameter space, including cyclic extreme and superstable curves, which contribute to the formation of period-adding structures. Examples of extreme and superstable curves obtained by the recursive method are presented. It is important to note that the proposed method is generalizable and can be adapted to any one-dimensional map.","PeriodicalId":9974,"journal":{"name":"Chaos","volume":"35 2","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143439870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The role of coupling and external current in two coupled Hodgkin-Huxley neurons.

IF 2.7 2区数学

Chaos Pub Date : 2025-02-01 DOI: 10.1063/5.0243433

T Bogatenko, K Sergeev, G Strelkova

引用次数: 0

A combat game model between hierarchical networks.

IF 2.7 2区数学

Chaos Pub Date : 2025-02-01 DOI: 10.1063/5.0245941

Hao Chen, Zhixin Liu

{"title":"A combat game model between hierarchical networks.","authors":"Hao Chen, Zhixin Liu","doi":"10.1063/5.0245941","DOIUrl":"https://doi.org/10.1063/5.0245941","url":null,"abstract":"Inter-network combat between hierarchical systems plays an essential role in shaping the landscape of everyone's surroundings, influencing fields such as sports tournaments, business competitions, military conflicts, and trade wars. In response, this study proposes a hierarchical combat game model to analyze the dynamics of leader-follower networks engaged in adversarial interactions. Within this model, leaders are motivated by the collective goals, framing the strategic dilemmas faced by followers, who must balance adherence to leadership strategies against minimizing personal risk. Utilizing the leader-follower game as a theoretical framework, the study investigates the impact of leader characteristics on overall success, measured by the winning percentage (WP). The key findings reveal that increasing the number of leaders consistently enhances WP, with the effect being more pronounced in larger populations. However, higher aspiration level and rationality among leaders may impede their chances of winning the game. Additionally, the analysis uncovers strong correlations between the differences in the number of surviving followers, differences in payoffs, and differences in the proportion of followers adopting the Attack strategy, highlighting critical factors that drive success in combat scenarios. Furthermore, our investigation into follower dynamics reveals that the side making the first sacrifice often wins.","PeriodicalId":9974,"journal":{"name":"Chaos","volume":"35 2","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143472379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phase-locking characteristics and dynamics of the subharmonic entrainment of breathing temporal solitons.

IF 2.7 2区数学

Chaos Pub Date : 2025-02-01 DOI: 10.1063/5.0229600

Heng Dong, Xiankun Yao, Qian Zhang

引用次数: 0

Quantifying tipping behavior: Geometric early warnings and quasipotentials for a box model of AMOC.

IF 2.7 2区数学

Chaos Pub Date : 2025-02-01 DOI: 10.1063/5.0240959

Ruth R Chapman, Peter Ashwin, Richard A Wood

{"title":"Quantifying tipping behavior: Geometric early warnings and quasipotentials for a box model of AMOC.","authors":"Ruth R Chapman, Peter Ashwin, Richard A Wood","doi":"10.1063/5.0240959","DOIUrl":"https://doi.org/10.1063/5.0240959","url":null,"abstract":"A non-autonomous system can undergo a rapid change of state in response to a small or slow change in forcing, due to the presence of nonlinear processes that give rise to critical transitions or tipping points. Such transitions are thought possible in various subsystems (tipping elements) of the Earth's climate system. The Atlantic Meridional Overturning Circulation (AMOC) is considered a particular tipping element where models of varying complexity have shown the potential for bi-stability and tipping. We consider both transient and stochastic forcing of a simple but data-adapted model of the AMOC. We propose and test a geometric early warning signal to predict whether tipping will occur for large transient forcing, based on the dynamics near an edge state. For stochastic forcing, we quantify mean times between noise-induced tipping in the presence of stochastic forcing using an Ordered Line Integral Method of Cameron (2017) to estimate the quasipotential. We calculate minimum action paths between stable states for various scenarios. Finally, we discuss the problem of finding early warnings in the presence of both transient and stochastic forcing.","PeriodicalId":9974,"journal":{"name":"Chaos","volume":"35 2","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143499530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Approach to nonequilibrium: From anomalous to Brownian diffusion via non-Gaussianity.

IF 2.7 2区数学

Chaos Pub Date : 2025-02-01 DOI: 10.1063/5.0243203

I G Marchenko, I I Marchenko, J Łuczka, J Spiechowicz

{"title":"Approach to nonequilibrium: From anomalous to Brownian diffusion via non-Gaussianity.","authors":"I G Marchenko, I I Marchenko, J Łuczka, J Spiechowicz","doi":"10.1063/5.0243203","DOIUrl":"https://doi.org/10.1063/5.0243203","url":null,"abstract":"Recent progress in experimental techniques, such as single particle tracking, allows one to analyze both nonequilibrium properties and an approach to equilibrium. There are examples showing that processes occurring at finite timescales are distinctly different than their equilibrium counterparts. In this work, we analyze a similar problem of an approach to nonequilibrium. We consider an archetypal model of a nonequilibrium system consisting of a Brownian particle dwelling in a spatially periodic potential and driven by an external time-periodic force. We focus on a diffusion process and monitor its development in time. In the presented parameter regime, the excess kurtosis measuring the Gaussianity of the particle displacement distribution evolves in a non-monotonic way: first, it is negative (platykurtic form), next, it becomes positive (leptokurtic form), and then decays to zero (mesokurtic form). Despite the latter fact, diffusion in the long time limit is Brownian, yet non-Gaussian. Moreover, we discover a correlation between non-Gaussianity of the particle displacement distribution and transient anomalous diffusion behavior emerging for finite timescales.","PeriodicalId":9974,"journal":{"name":"Chaos","volume":"35 2","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143254851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring complex dynamics in a Ricker type predator-prey model with prey refuge.

IF 2.7 2区数学

Chaos Pub Date : 2025-02-01 DOI: 10.1063/5.0232030

Ibraheem M Alsulami, Rizwan Ahmed, Faraha Ashraf

引用次数: 0

Extreme events in the Higgs oscillator: A dynamical study and forecasting approach.

IF 2.7 2区数学

Chaos Pub Date : 2025-02-01 DOI: 10.1063/5.0248180

Wasif Ahamed M, Kavitha R, Chithiika Ruby V, Sathish Aravindh M, Venkatesan A, Lakshmanan M

引用次数: 0