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Evolutionary model on market ecology of investors and investments

Gao, Ya-Chun; Cai, Shi-Min; Lü, Linyuan; Wang, Bing-Hong - In: Physica A: Statistical Mechanics and its Applications 392 (2013) 16, pp. 3385-3391

The interactions between investors and investments are of significant importance to understand the dynamics of financial markets. An evolutionary model is proposed to investigate the dynamic behaviors of investors and investments in a market ecology. The investors are divided into two groups,...

Persistent link: https://www.econbiz.de/10011060899

Scaling properties of avalanches from a collapsing granular pile

Jia, L.C; Lai, Pik-Yin; Chan, C.K - In: Physica A: Statistical Mechanics and its Applications 281 (2000) 1, pp. 404-412

Results of an experimental investigation of the scaling properties of a collapsing rice pile induced by reducing the length of the base support of the pile are reported. It is found that two angles of repose are needed to describe the shape of the collapsing granular pile. Corresponding to these...

Persistent link: https://www.econbiz.de/10010871720

Sandpile avalanche dynamics on scale-free networks

Lee, D.-S.; Goh, K.-I.; Kahng, B.; Kim, D. - In: Physica A: Statistical Mechanics and its Applications 338 (2004) 1, pp. 84-91

Avalanche dynamics is an indispensable feature of complex systems. Here, we study the self-organized critical dynamics …, we obtain the avalanche size and the duration distribution of sand toppling, which follow power-laws with exponents τ and …

Persistent link: https://www.econbiz.de/10011057737

Cascading toppling dynamics on scale-free networks

Goh, K.-I.; Lee, D.-S.; Kahng, B.; Kim, D. - In: Physica A: Statistical Mechanics and its Applications 346 (2005) 1, pp. 93-103

We study avalanche dynamics on scale-free networks, following a power-law degree distribution, pd(k)∼k-γ, through the … exponents for the avalanche size and the duration distributions analytically as a function of γ and η by using the branching … the static model and real-world networks. While numerical results of the avalanche size distribution for artificial …

Persistent link: https://www.econbiz.de/10011057771

Crackles and instabilities during lung inflation

Alencar, Adriano M.; Majumdar, Arnab; Hantos, Zoltan; … - In: Physica A: Statistical Mechanics and its Applications 357 (2005) 1, pp. 18-26

In a variety of physico-chemical reactions, the actual process takes place in a reactive zone, called the “active surface”. We define the active surface of the lung as the set of airway segments that are closed but connected to the trachea through an open pathway, which is the interface...

Persistent link: https://www.econbiz.de/10011060508

Characteristics for two kinds of cascading events

Zou, Sheng-Rong; Gu, Ai-Hua; Liu, Ai-Fen; Xu, Xiu-Lian; … - In: Physica A: Statistical Mechanics and its Applications 390 (2011) 8, pp. 1440-1446

Avalanche or cascade failure is ubiquitous. We first classify the cascading phenomena into two categories: the …

Persistent link: https://www.econbiz.de/10010589421

Two types of avalanche behaviour in model granular media

Barker, G.C; Mehta, Anita - In: Physica A: Statistical Mechanics and its Applications 283 (2000) 3, pp. 328-336

We have described a lattice model of a sandpile that includes a coupling between evolving granular structures and dynamic responses. The coupling manifests as a granular memory. We have illustrated the role of memory by observing avalanches in a (three)-dimensional model sandpile. There are two...

Persistent link: https://www.econbiz.de/10010591573

Asymmetric effect of route-length difference and bottleneck on route choice in two-route traffic system

Hino, Yuki; Nagatani, Takashi - In: Physica A: Statistical Mechanics and its Applications 428 (2015) C, pp. 416-425

We study the traffic behavior in the asymmetric two-route traffic system with real-time information. In the asymmetric two-route system, the length on route A is different from that on route B and there exists a bottleneck on route A. We extend the symmetric two-route dynamic model to the...

Persistent link: https://www.econbiz.de/10011209651

Conditional statistical properties of the complex systems having long-duration memory

Huang, Zhifu; Ou, Congjie; Lin, Bihong; Su, Guozhen; … - In: Physica A: Statistical Mechanics and its Applications 409 (2014) C, pp. 138-145

A new concept of the available force is proposed to investigate the performance of the complex systems having long-duration memory. Since the covariance of average velocity in double time interval and available force equals zero, it is possible to calculate the conditional probability...

Persistent link: https://www.econbiz.de/10010785362

Vehicular traffic flow through a series of signals with cycle time generated by a logistic map

Nagatani, Takashi; Sugiyama, Naoki - In: Physica A: Statistical Mechanics and its Applications 392 (2013) 4, pp. 851-856

We study the dynamical behavior of vehicular traffic through a series of traffic signals. The vehicular traffic is controlled with the use of the cycle time generated by a logistic map. Each signal changes periodically with a cycle time, and the cycle time varies from signal to signal. The...

Persistent link: https://www.econbiz.de/10010871979