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On mixed fractional stochastic differential equations with discontinuous drift coefficient
Published online by Cambridge University Press: 01 December 2022
Abstract
We prove existence and uniqueness for the solution of a class of mixed fractional stochastic differential equations with discontinuous drift driven by both standard and fractional Brownian motion. Additionally, we establish a generalized Itô rule valid for functions with an absolutely continuous derivative and applicable to solutions of mixed fractional stochastic differential equations with Lipschitz coefficients, which plays a key role in our proof of existence and uniqueness. The proof of such a formula is new and relies on showing the existence of a density of the law under mild assumptions on the diffusion coefficient.
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- © The Author(s), 2022. Published by Cambridge University Press on behalf of Applied Probability Trust
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