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Títol:
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Nonstationary Feller process with time-varying coefficients
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Autor/a:
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Masoliver, Jaume, 1951-
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Altres autors:
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Universitat de Barcelona |
Abstract:
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We study the nonstationary Feller process with time varying coefficients. We obtain the exact probability distribution exemplified by its characteristic function and cumulants. In some particular cases we exactly invert the distribution and achieve the probability density function. We show that for sufficiently long times this density approaches a Γ distribution with time-varying shape and scale parameters. Not far from the origin the process obeys a power law with an exponent dependent of time, thereby concluding that accessibility to the origin is not static but dynamic. We finally discuss some possible applications of the process. |
Matèries:
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-Física matemàtica -Processos estocàstics -Mathematical physics -Stochastic processes |
Drets:
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(c) American Physical Society, 2016
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Tipus de document:
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Article Article - Versió publicada |
Publicat per:
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American Physical Society
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