Research Article
Solving Fractional Partial Differential Equations with Corrected
Fourier Series Method
Nor Hafizah Zainal
1
and Adem KJlJçman
1,2
1
Department of Mathematics, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
2
Institute for Mathematical Research, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
Correspondence should be addressed to Adem Kılıc ¸man; akilic@upm.edu.my
Received 31 March 2014; Accepted 5 May 2014; Published 26 May 2014
Academic Editor: Hassan Eltayeb
Copyright © 2014 N. H. Zainal and A. Kılıc ¸man. Tis is an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Te corrected Fourier series (CFS) is proposed for solving partial diferential equations (PDEs) with fractional time derivative on
a fnite domain. In the previous work, we have been solving partial diferential equations by using corrected Fourier series. Te
fractional derivatives are described in Riemann sense. Some numerical examples are presented to show the solutions.
1. Introduction
In recent years, diferential equations of fractional orders have
been appearing more and more frequently in various research
and applications in the fuid mechanics, viscoelasticity, biol-
ogy, physics, and engineering; see [1, 2]. Tere are some meth-
ods usually used in solving the fractional partial diferential
equations such as Laplace and Fourier transform, variational
iteration method, and diferential transform methods. In this
study, we want to use the corrected Fourier series method in
solving the problems.
In [3], corrected Fourier series method has been used
in solving classical PDEs problems. Te corrected Fourier
series is a combination of the uniformly convergent Fourier
series and the correction functions and consists of algebraic
polynomials and Heaviside step function.
2. Basic Definitions
Te Riemann-Liouville fractional integral is the most popular
defnition that we always fnd in the study of fractional
calculus.
Defnition 1. Te Riemann-Liouville fractional integral oper-
ator of order >0 of a function () is defned as
() =
1
Γ ()
∫
0
( − )
−1
() . (1)
Jumarie’s modifed Riemann-Liouville derivative of order
is defned by the following defnition.
Defnition 2. Let : R → R, → () denote a
continuous function. Its fractional derivative of order is
defned as follows:
for <0,
=
1
Γ (−)
∫
0
( − )
−−1
( () − (0)) , (2)
for >0,
=
1
Γ (1 − )
∫
0
( − )
−
( () − (0)) ,
where 0 < < 1,
0
() =
1
Γ ( − )
∫
0
( − )
−−1
[ () − (0)] ,
(3)
where −1<< with ∈.
Defnition 3 (see [4–7]). Fractional derivative of com-
pounded function is defned as
≅ Γ (1 + ) , 0 < < 1. (4)
Hindawi Publishing Corporation
Abstract and Applied Analysis
Volume 2014, Article ID 958931, 5 pages
http://dx.doi.org/10.1155/2014/958931