An α-Robust Semidiscrete Finite Element Method for a Fokker–Planck Initial-Boundary Value Problem with Variable-Order Fractional Time Derivative

A time-fractional initial-boundary value problem of Fokker–Planck type is considered on the space-time domain Ω × [ 0 , T ] , where Ω is an open bounded domain in  R d for some d ≥ 1 , and the order α ( x ) of the Riemann-Liouville fractional derivative may vary in space with 1 / 2 < α ( x ) <...

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