کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4613967 1339276 2016 26 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A multispecies birth–death–immigration process and its diffusion approximation
ترجمه فارسی عنوان
یک فرایند مهاجرت چندین گونه و مرگ و میر و تقسیم بندی آن
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات آنالیز ریاضی
چکیده انگلیسی

We consider an extended birth–death–immigration process defined on a lattice formed by the integers of d semiaxes joined at the origin. When the process reaches the origin, then it may jump toward any semiaxis with the same rate. The dynamics on each ray evolves according to a one-dimensional linear birth–death process with immigration. We investigate the transient and asymptotic behavior of the process via its probability generating function. The stationary distribution, when existing, is a zero-modified negative binomial distribution. We also study a diffusive approximation of the process, which involves a diffusion process with linear drift and infinitesimal variance on each ray. It possesses a gamma-type transient density admitting a stationary limit. As a byproduct of our study, we obtain a closed form of the number of permutations with a fixed number of components, and a new series form of the polylogarithm function expressed in terms of the Gauss hypergeometric function.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Mathematical Analysis and Applications - Volume 442, Issue 1, 1 October 2016, Pages 291–316
نویسندگان
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