The Basics of Diffusion
The concept of diffusion may be viewed naively as the tendency for a group of particles initially concentrated near a point in space to spread out in time, gradually occupying an ever larger area around the initial point. Herein the term “particles” refers not only to physical particles, but to biological population individuals or to any other identifiable units as well. Furthermore, the term “space” does not refer only to ordinary Euclidean space but can also be an abstract space (such as ecological niche space).
KeywordsRandom Walk Random Walk Model Usion Width Similarity Hypothesis Particle Group
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