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New spectral techniques for systems of fractional differential equations using fractional-order generalized Laguerre orthogonal functions

New spectral techniques for systems of fractional differential equations using fractional-order generalized Laguerre orthogonal functions

Fractional-order generalized Laguerre functions (FGLFs) are proposed depends on the definition of generalized Laguerre polynomials. In addition, we derive a new formula expressing explicitly any Caputo fractional-order derivatives of FGLFs in terms of FGLFs themselves. We also propose a fractional-order generalized Laguerre tau technique in conjunction with the derived fractional-order …