Some remarks on the links between the VIR and Gompertz diffusion models and the links between the CIR and Rayleigh diffusion models

The main purpose of this work is to establish a new links between the stochastic Cox-Ingersoll-Ross (CIR) model and the stochastic Rayleigh diffusion process (SRDP) and the links between the Vasicek Interest Rate (VIR) process and the stochastic Gompertz diffusion process (SGDP). These links focus o...

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Main Authors: Abdenbi El Azri, Ahmed Nafidi
Format: Article
Language:English
Published: EJAAM 2023-12-01
Series:E-Journal of Analysis and Applied Mathematics
Subjects:
Online Access:https://ejaam.org/articles/2023/10.62780-ejaam-2023-001.pdf
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author Abdenbi El Azri
Ahmed Nafidi
author_facet Abdenbi El Azri
Ahmed Nafidi
author_sort Abdenbi El Azri
collection DOAJ
description The main purpose of this work is to establish a new links between the stochastic Cox-Ingersoll-Ross (CIR) model and the stochastic Rayleigh diffusion process (SRDP) and the links between the Vasicek Interest Rate (VIR) process and the stochastic Gompertz diffusion process (SGDP). These links focus on elementary stochastic calculus and Itô’s calculus. Firstly, we prove that the square root of the CIR model is a SRDP. Secondly, we prove that the square of the SRDP is a CIR model. Thirdly, we prove that the exponential of the VIR model is a SGDP. Finally, we prove that the logarithm of the SGDP is a VIR model. New computations of the probability transition density function (PTDF) and the trend functions of the processes have quite simple formulations
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institution Kabale University
issn 2544-9990
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publishDate 2023-12-01
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series E-Journal of Analysis and Applied Mathematics
spelling doaj-art-c107f6606e5c4954b80e0cf54420322c2025-02-08T18:35:22ZengEJAAME-Journal of Analysis and Applied Mathematics2544-99902023-12-01202310.62780/ejaam/2023-001Some remarks on the links between the VIR and Gompertz diffusion models and the links between the CIR and Rayleigh diffusion modelsAbdenbi El Azri0Ahmed Nafidi1Hassan First University of Settat, National School of Applied Sciences, B.P. 218, 26103 Berrechid, MoroccoHassan First University of Settat, National School of Applied Sciences, B.P. 218, 26103 Berrechid, MoroccoThe main purpose of this work is to establish a new links between the stochastic Cox-Ingersoll-Ross (CIR) model and the stochastic Rayleigh diffusion process (SRDP) and the links between the Vasicek Interest Rate (VIR) process and the stochastic Gompertz diffusion process (SGDP). These links focus on elementary stochastic calculus and Itô’s calculus. Firstly, we prove that the square root of the CIR model is a SRDP. Secondly, we prove that the square of the SRDP is a CIR model. Thirdly, we prove that the exponential of the VIR model is a SGDP. Finally, we prove that the logarithm of the SGDP is a VIR model. New computations of the probability transition density function (PTDF) and the trend functions of the processes have quite simple formulationshttps://ejaam.org/articles/2023/10.62780-ejaam-2023-001.pdfcox-ingersoll-ross modelrayleigh diffusion processvasicek interest rate modelstochastic gompertz diffusion process
spellingShingle Abdenbi El Azri
Ahmed Nafidi
Some remarks on the links between the VIR and Gompertz diffusion models and the links between the CIR and Rayleigh diffusion models
E-Journal of Analysis and Applied Mathematics
cox-ingersoll-ross model
rayleigh diffusion process
vasicek interest rate model
stochastic gompertz diffusion process
title Some remarks on the links between the VIR and Gompertz diffusion models and the links between the CIR and Rayleigh diffusion models
title_full Some remarks on the links between the VIR and Gompertz diffusion models and the links between the CIR and Rayleigh diffusion models
title_fullStr Some remarks on the links between the VIR and Gompertz diffusion models and the links between the CIR and Rayleigh diffusion models
title_full_unstemmed Some remarks on the links between the VIR and Gompertz diffusion models and the links between the CIR and Rayleigh diffusion models
title_short Some remarks on the links between the VIR and Gompertz diffusion models and the links between the CIR and Rayleigh diffusion models
title_sort some remarks on the links between the vir and gompertz diffusion models and the links between the cir and rayleigh diffusion models
topic cox-ingersoll-ross model
rayleigh diffusion process
vasicek interest rate model
stochastic gompertz diffusion process
url https://ejaam.org/articles/2023/10.62780-ejaam-2023-001.pdf
work_keys_str_mv AT abdenbielazri someremarksonthelinksbetweenthevirandgompertzdiffusionmodelsandthelinksbetweenthecirandrayleighdiffusionmodels
AT ahmednafidi someremarksonthelinksbetweenthevirandgompertzdiffusionmodelsandthelinksbetweenthecirandrayleighdiffusionmodels