Variational Approach for Fractional Partial Differential Equations

Details Variational Approach for Fractional Partial Differential Equations Variational Approach for Fractional Partial Differential Equations

2010-06-25

arxiv.org/abs/1006.4999v1

Physics

Mathematical Physics

8 pages

Scientific paper

Fractional variational approach has gained much attention in recent years. There are famous fractional derivatives such as Caputo derivative, Riesz derivative and Riemann-Liouville derivative. Several versions of fractional variational principles are proposed. However, it becomes difficult to apply the existing fractional variational theories to fractional differential models, due to the definitions of fractional variational derivatives which not only contain the left fractional derivatives but also appear right ones. In this paper, a new definition of fractional variational derivative is introduced by using a modified Riemann-Liouville derivative and the fractional Euler-Lagrange principle is established for fractional partial differential equations.

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