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- Ofer Malcai, Ofer Biham, Sorin Solomon
- Physical review. E, Statistical physics, plasmasâ€¦
- 1999

A generic model of stochastic autocatalytic dynamics with many degrees of freedom w(i,) i=1, em leader,N, is studied using computer simulations. The time evolution of the w(i)'s combines a randomâ€¦ (More)

- Ofer Malcai, Ofer Biham, Peter Richmond, Sorin Solomon
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2002

The dynamics of generalized Lotka-Volterra systems is studied by theoretical techniques and computer simulations. These systems describe the time evolution of the wealth distribution of individualsâ€¦ (More)

Fractal structures appear in a vast range of physical systems. A literature survey including all experimental papers on fractalswhich appeared in the six Physical Review journals ~Aâ€“E and Letters !â€¦ (More)

The dynamics of generic stochastic Lotka-Volterra (discrete logistic) systems of the form [36] wi(t + 1) = Î»(t)wi(t) + awÌ„(t)âˆ’ bwi(t)wÌ„(t) is studied by computer simulations. The variables wi, i = 1,â€¦ (More)

- Ofer Biham, Zheng Fang Huang, Ofer Malcai, Sorin Solomon
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2001

Financial time series typically exhibit strong fluctuations that cannot be described by a Gaussian distribution. Recent empirical studies of stock market indices examined whether the distributionâ€¦ (More)

- Ofer Biham, Erel Milshtein, Ofer Malcai
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2001

Recent numerical studies have provided evidence that within the family of conservative, undirected sandpile models with short range dynamic rules, deterministic models such as the Bak-Tang-Wiesenfeldâ€¦ (More)

We show that when the standard techniques for calculating fractal dimensions in empirical data (such as the box counting) are applied on uniformly random structures, apparent fractal behavior isâ€¦ (More)

- Ofer Biham, Ofer Malcai, Daniel A. Lidar, David Avnir
- Physical review. E, Statistical physics, plasmasâ€¦
- 1999

We present a model that describes adsorption and clustering of particles on a surface. A clustering transition is found that separates between a phase of weakly correlated particle distributions andâ€¦ (More)

- Ofer Malcai, Yehiel Shilo, Ofer Biham
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2006

We consider a dissipative variant of the stochastic-Abelian sandpile model on a two-dimensional lattice. The boundaries are closed and the dissipation is due to the fact that each toppled grain isâ€¦ (More)

A notion which has been advanced intensively in the past two decades, is that fractal geometry describes well the irregular face of Nature. We were prompted by Marderâ€™s recent article in Science [1],â€¦ (More)

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