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Exactly solvable reaction diffusion models on a Cayley tree
Matin, L. F.; Aghamohammadi, A.; Khorrami, M. - In: The European Physical Journal B - Condensed Matter and … 56 (2007) 3, pp. 243-246
The most general reaction-diffusion model on a Cayley tree with nearest-neighbor interactions is introduced, which can be solved exactly through the empty-interval method. The stationary solutions of such models, as well as their dynamics, are discussed. Concerning the dynamics, the spectrum of...
Persistent link: https://www.econbiz.de/10009280951
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Convective and absolute instabilities in the subcritical Ginzburg-Landau equation
Colet, P.; Walgraef, D.; Miguel, M. - In: The European Physical Journal B - Condensed Matter and … 11 (1999) 3, pp. 517-524
We study the nature of the instability of the homogeneous steady states of the subcritical real Ginzburg-Landau equation in the presence of group velocity. The shift of the absolute instability threshold of the trivial steady state, induced by the destabilizing cubic nonlinearities, is confirmed...
Persistent link: https://www.econbiz.de/10010992511
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Convective and absolute instabilities in the subcritical Ginzburg-Landau equation
Colet, P.; Walgraef, D.; Miguel, M. - In: The European Physical Journal B - Condensed Matter and … 11 (1999) 3, pp. 517-524
Persistent link: https://www.econbiz.de/10009325009
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Apparent multifractality in financial time series
Bouchaud, J.-P.; Potters, M.; Meyer, M. - In: The European Physical Journal B - Condensed Matter and … 13 (2000) 3, pp. 595-599
Persistent link: https://www.econbiz.de/10009325087
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Role of noise in a market model with stochastic volatility
Bonanno, G.; Valenti, D.; Spagnolo, B. - In: The European Physical Journal B - Condensed Matter and … 53 (2006) 3, pp. 405-409
correlation between the two Wiener processes, which model the two white noise sources. This model can be useful to describe the … noise on the statistical properties of the escape time with reference to the noise enhanced stability (NES) phenomenon, that … is the noise induced enhancement of the lifetime of a metastable state. We observe NES effect in our model with …
Persistent link: https://www.econbiz.de/10009279971
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The role of communication and imitation in limit order markets
Tedeschi, G.; Iori, G.; Gallegati, M. - In: The European Physical Journal B - Condensed Matter and … 71 (2009) 4, pp. 489-497
Persistent link: https://www.econbiz.de/10009280007
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A random walker on a ratchet potential: effect of a non Gaussian noise
Mangioni, S. E.; Wio, H. S. - In: The European Physical Journal B - Condensed Matter and … 61 (2008) 1, pp. 67-73
We analyze the effect of a colored non Gaussian noise on a model of a random walker moving along a ratchet potential … correlated and non Gaussian. Among other aspects, in addition to a maximum in the current as the noise intensity is varied, we …
Persistent link: https://www.econbiz.de/10009280020
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Stochastic resonance in an ion channel following the non-Arrhenius gating rate
Parc, Yong Woon; Koh, Duk-Su; Sung, Wokyung - In: The European Physical Journal B - Condensed Matter and … 69 (2009) 1, pp. 127-131
Persistent link: https://www.econbiz.de/10009280022
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A wavelet-based method for multifractal image analysis. I. Methodology and test applications on isotropic and anisotropic random rough surfaces
Arnéodo, A.; Decoster, N.; Roux, S.G. - In: The European Physical Journal B - Condensed Matter and … 15 (2000) 3, pp. 567-600
Persistent link: https://www.econbiz.de/10009280026
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Asymptotic regime in N random interacting species
Fiasconaro, A.; Valenti, D.; Spagnolo, B. - In: The European Physical Journal B - Condensed Matter and … 50 (2006) 1, pp. 189-194
multiplicative noise is analyzed. We find the role of the external noise on the long time probability distribution of the ith density …
Persistent link: https://www.econbiz.de/10009280043