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- Heinz Isliker, Anastasios Anastasiadis, Loukas Vlahos
- 2003

The last decade several cellular automata (CA) models have been developed in order to explain the solar flare statistics derived from observations. These models simulate the storage/release process using simple evolution rules, neglecting the details of the processes. The main advantage of this approach is the treatment of a large number of elementary… (More)

- Loukas Vlahos, Heinz Isliker, Yannis Kominis, Kyriakos Hizanidis
- 2008

The purpose of this tutorial is to introduce the main concepts behind normal and anomalous diffusion. Starting from simple, but well known experiments, a series of mathematical modeling tools are introduced, and the relation between them is made clear. First, we show how Brownian motion can be understood in terms of a simple random walk model. Normal… (More)

Electron and proton acceleration in three-dimensional electric and magnetic fields is studied through test particle simulations. The fields are obtained by a three-dimensional magnetohydrodynamic simulation of magnetic reconnection in slab geometry. The nonlinear evolution of the system is characterized by the growth of many unstable modes and the initial… (More)

- Loukas Vlahos, Tassos Fragos, Heinz Isliker, Manolis Georgoulis
- 2002

The formation and evolution of active regions are inherently complex phenomena. Magnetic fields generated at the base of the convection zone follow a chaotic evolution before reaching the solar surface. In this article, we use a two-dimensional probabilistic cellular automaton to model the statistical properties of the magnetic patterns formed on the solar… (More)

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