Stochastic equations with singular drift driven by fractional Brownian motion
We consider stochastic differential equation $$ d X_t=b(X_t) dt +d W_t^H, $$ where the drift $b$ is either a measure or an integrable function, and $W^H$ is a $d$-dimensional fractional Brownian motion with Hurst parameter $H\in(0,1)$, $d\in\mathbb{N}$. For the case where $b\in L_p(\mathbb{R}^d)$, $...
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Zusammenfassung: | We consider stochastic differential equation $$ d X_t=b(X_t) dt +d W_t^H, $$
where the drift $b$ is either a measure or an integrable function, and $W^H$ is
a $d$-dimensional fractional Brownian motion with Hurst parameter $H\in(0,1)$,
$d\in\mathbb{N}$. For the case where $b\in L_p(\mathbb{R}^d)$, $p\in[1,\infty]$
we show weak existence of solutions to this equation under the condition $$
\frac{d}p |
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DOI: | 10.48550/arxiv.2302.11937 |