21 resultados para random spacing
em Bulgarian Digital Mathematics Library at IMI-BAS
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2000 Mathematics Subject Classification: 78A50
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The paper is dedicated to the theory which describes physical phenomena in non-constant statistical conditions. The theory is a new direction in probability theory and mathematical statistics that gives new possibilities for presentation of physical world by hyper-random models. These models take into consideration the changing of object’s properties, as well as uncertainty of statistical conditions.
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In this paper we study a nonlinear evolution inclusion of subdifferential type in Hilbert spaces. The perturbation term is Hausdorff continuous in the state variable and has closed but not necessarily convex values. Our result is a stochastic generalization of an existence theorem proved by Kravvaritis and Papageorgiou in [6].
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* Research supported by NATO GRANT CRG 900 798 and by Humboldt Award for U.S. Scientists.
On Multi-Dimensional Random Walk Models Approximating Symmetric Space-Fractional Diffusion Processes
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Mathematics Subject Classification: 26A33, 47B06, 47G30, 60G50, 60G52, 60G60.
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Mathematics Subject Classification: 65C05, 60G50, 39A10, 92C37
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2000 Mathematics Subject Classification: 60J80.
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2000 Mathematics Subject Classification: 60J60, 62M99.
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A partition of a positive integer n is a way of writing it as the sum of positive integers without regard to order; the summands are called parts. The number of partitions of n, usually denoted by p(n), is determined asymptotically by the famous partition formula of Hardy and Ramanujan [5]. We shall introduce the uniform probability measure P on the set of all partitions of n assuming that the probability 1/p(n) is assigned to each n-partition. The symbols E and V ar will be further used to denote the expectation and variance with respect to the measure P . Thus, each conceivable numerical characteristic of the parts in a partition can be regarded as a random variable.
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The classical Bienaymé-Galton-Watson (BGW) branching process can be interpreted as mathematical model of population dynamics when the members of an isolated population reproduce themselves independently of each other according to a stochastic law.
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2000 Mathematics Subject Classification: 60J80, 60K05.
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2000 Mathematics Subject Classi cation: 62D05.
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2000 Mathematics Subject Classification: 05A16, 05A17.
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2000 Mathematics Subject Classification: Primary 60F17, 60G52, 60G70 secondary 60E07, 62E20.
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2000 Mathematics Subject Classification: 62J12, 62K15, 91B42, 62H99.