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Showing 2018 · math.NAShow all
3 papers · 2 filters
math.NA2018
Galerkin FEM for a time-fractional Oldroyd-B fluid problem
Mariam Al-Maskari, Samir Karaa
We consider the numerical approximation of a generalized fractional Oldroyd-B fluid problem involving two Riemann-Liouville fractional derivatives in time. We establish regularity…
math.NA2018★ 18 cited
A general explicit form for higher order approximations for fractional derivatives and its consequences
W. A. Gunarathna, H. M. Nasir, W. B. Daundasekera
A general explicit form for generating functions for approximating fractional derivatives is derived. To achieve this, an equivalent characterisation for consistency and order of a…
math.NA2018
Algebraic construction of higher order difference approximations for fractional derivatives and applications
H. M. Nasir, K. Nafa
A generalization of the Grünwald difference approximation for fractional derivatives in terms of a real sequence and its generating function is presented. Properties of the generat…