Mathematics – Probability
Scientific paper
2006-10-31
Mathematics
Probability
23 pages, 3 figures
Scientific paper
We are interested here in a birth-and-growth process where germs are born according to a Poisson point process with invariant under translation in space intensity measure. The germs can be born in free space and then start growing until occupying the available space. In order to consider various way of growing, we describe the crystals at each time through their geometrical properties. In this general framework, the crystallization process can be caracterized by the random field giving for a point in the space state the first time this point is reached by a crystal. We prove under general conditions that this random field is mixing in the sens of ergodic theory and obtain estimates for the coefficient of absolute regularity.
Davydov Youri
Illig A.
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