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Short Communications
On the sum of Gaussian martingale and an independent fractional Brownian motion
R. Belfadlia, M. Chadadb, M. Erraouic a Department of Mathematics, Faculty of Sciences and Technology, Cadi Ayyad University, Marrakech, Morocco
b Mathematics Department, Faculty of Sciences Semalalia, Cadi Ayyad University, Marrakesh, Morocco
c Mathematics Department, Faculty of Sciences, Chouaib Doukkali University, El Jadida, Morocco
Abstract:
In the same context as in the seminal paper
[P. Cheridito, Bernoulli, 7 (2001), pp. 913–934],
we are concerned with the semimartingale property of the sum of some Gaussian
martingale and an independent fractional Brownian motion with Hurst parameter $H
\in (0,1)$. At the same time, we emphasize that the Markov property is lost even
if the martingale owns it.
Keywords:
Gaussian martingale, quasimartingale, semimartingale, entropy, equivalent measure, Markov process.
Received: 18.12.2020 Revised: 25.05.2022 Accepted: 20.09.2022
Citation:
R. Belfadli, M. Chadad, M. Erraoui, “On the sum of Gaussian martingale and an independent fractional Brownian motion”, Teor. Veroyatnost. i Primenen., 68:2 (2023), 383–392; Theory Probab. Appl., 68:2 (2023), 316–323
Linking options:
https://www.mathnet.ru/eng/tvp5466https://doi.org/10.4213/tvp5466 https://www.mathnet.ru/eng/tvp/v68/i2/p383
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Statistics & downloads: |
Abstract page: | 138 | Full-text PDF : | 7 | References: | 36 | First page: | 12 |
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