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Exact solutions for a generalized nonlinear fractional Fokker-Planck equation. (English) Zbl 1181.35293
Summary: This paper is devoted to investigating a generalized nonlinear Fokker-Planck diffusion equation with external force and absorption. We first investigate the integer nonlinear anomalous diffusion, and we obtain the corresponding exact solution expressed by q-exponential function. The solutions of nonlinear diffusion equation with one-fractional derivative and multi-fractional derivative are also studied in detail, and the solutions can have a compact behavior or a long tailed behavior.
MSC:
35Q84Fokker-Planck equations
35R11Fractional partial differential equations
35B40Asymptotic behavior of solutions of PDE
35C05Solutions of PDE in closed form
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