We consider the 1D transport equation with nonlocal velocity field:
$ \begin{equation*} \label{intro eq} \begin{split} &\theta_t+u\theta_x+\nu \Lambda^{\gamma}\theta = 0, \\ & u = \mathcal{N}(\theta), \end{split} \end{equation*} $
where $ \mathcal{N} $ is a nonlocal operator and $ \Lambda^{\gamma} $ is a Fourier multiplier defined by $ \widehat{\Lambda^{\gamma} f}(\xi) = |\xi|^{\gamma}\widehat{f}(\xi) $. In this paper, we show the existence of solutions of this model locally and globally in time for various types of nonlocal operators.
Citation: |
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