[1] R.P. Agarwal, B. Ahmad, Existence theory for anti-periodic boundary value problems of fractional differential equations and inclusions. Comput. Math. Appl.
62 (2011), 1200–1214. http://dx.doi.org/10.1016/j.camwa.2011.03.001

[2] A. Aghajani, Y. Jalilian, J.J. Trujillo, On the existence of solutions of fractional integro-differential equations. Fract. Calc. Appl. Anal.
15, No 1 (2012), 44–69; DOI: 10.2478/s13540-012-0005-4; http://link.springer.com/article/10.2478/s13540-012-0005-4. [CrossRef]

[3] B. Ahmad, J.J. Nieto, Existence results for a coupled system of nonlinear fractional differential equations with three-point boundary conditions. Comput. Math. Appl.
58 (2009), 1838–1843. http://dx.doi.org/10.1016/j.camwa.2009.07.091

[4] B. Ahmad, J.J. Nieto, J. Pimentel, Some boundary value problems of fractional differential equations and inclusions. Comput. Math. Appl.
62 (2011), 1238–1250. http://dx.doi.org/10.1016/j.camwa.2011.02.035

[5] B. Ahmad, J.J. Nieto, Anti-periodic fractional boundary value problems with nonlinear term depending on lower order derivative. Fract. Calc. Appl. Anal.
15, No 3 (2012), 451–462; DOI: 10.2478/s13540-012-0032-1; http://link.springer.com/article/10.2478/s13540-012-0032-1. [CrossRef]

[6] B. Ahmad, S.K. Ntouyas, Fractional differential inclusions with fractional separated boundary conditions, Fract. Calc. Appl. Anal.
15, No 3 (2012), 362–382; DOI: 10.2478/s13540-012-0027-y; http://link.springer.com/article/10.2478/s13540-012-0027-y. [CrossRef]

[7] B. Ahmad, S.K. Ntouyas, A. Alsaedi, New existence results for nonlinear fractional differential equations with three-point integral boundary conditions. Adv. Differ. Equ.
2011 (2011), Art. ID 107384, 11 pp.

[8] B. Ahmad, S.K. Ntouyas, A four-point nonlocal integral boundary value problem for fractional differential equations of arbitrary order. Electron. J. Qual. Theory Differ. Equ.
2011, No 22 (2011), 15 pp.

[9] D. Baleanu, R.P. Agarwal, O.G. Mustafa, M. Cosulschi, Asymptotic integration of some nonlinear differential equations with fractional time derivative. J. Phys. A, Math. Theor.
44, No 5 (2011), Article ID 055203, 9 p. [Web of Science]

[10] A. Cernea, A note on the existence of solutions for some boundary value problems of fractional differential inclusions. Fract. Calc. Appl. Anal.
15, No 2 (2012), 183–193; DOI: 10.2478/s13540-012-0013-4; http://link.springer.com/article/10.2478/s13540-012-0013-4. [CrossRef]

[11] N.J. Ford, M.L. Morgado, Fractional boundary value problems: analysis and numerical methods. Fract. Calc. Appl. Anal.
14, No 4 (2011), 554–567; DOI: 10.2478/s13540-011-0034-4; http://link.springer.com/article/10.2478/s13540-011-0034-4. [CrossRef]

[12] J.R. Graef, L. Kong, Q. Kong, W. Qingkai, M. Wang, Uniqueness of positive solutions of fractional boundary value problems with non-homogeneous integral boundary conditions. Fract. Calc. Appl. Anal.
15, No 3 (2012), 509–528; DOI: 10.2478/s13540-012-0036-x; http://link.springer.com/article/10.2478/s13540-012-0036-x. [CrossRef]

[13] A. Granas, J. Dugundji, Fixed Point Theory. Springer-Verlag, New York (2005).

[14] J. Henderson, R. Luca, Positive solutions for a system of nonlocal fractional boundary value problems. Fract. Calc. Appl. Anal.
16, No 4 (2013), 985–1008; DOI: 10.2478/s13540-013-0061-4; http://link.springer.com/article/10.2478/s13540-013-0061-4. [CrossRef]

[15] A.A. Kilbas, H.M. Srivastava, J.J. Trujillo, Theory and Applications of Fractional Differential Equations. North-Holland Mathematics Studies, 204, Elsevier Science B.V., Amsterdam (2006). http://dx.doi.org/10.1016/S0304-0208(06)80001-0

[16] V. Lakshmikantham, S. Leela, J. Vasundhara Devi, Theory of Fractional Dynamic Systems. Cambridge Academic Publishers, Cambridge (2009).

[17] J. Liang, Z. Liu, X. Wang, Solvability for a couple system of nonlinear fractional differential equations in a Banach space. Fract. Calc. Appl. Anal.
16, No 1 (2013), 51–63; DOI: 10.2478/s13540-013-0004-0; http://link.springer.com/article/10.2478/s13540-013-0004-0. [CrossRef]

[18] S.K. Ntouyas and M. Obaid, A coupled system of fractional differential equations with nonlocal integral boundary conditions. Adv. Differ. Equ.
2012 (2012), #130. http://dx.doi.org/10.1186/1687-1847-2012-130

[19] I. Podlubny, Fractional Differential Equations. Academic Press, San Diego (1999).

[20] J. Sabatier, O.P. Agrawal, J.A.T. Machado (Eds.), Advances in Fractional Calculus: Theoretical Developments and Applications in Physics and Engineering. Springer, Dordrecht (2007).

[21] X. Su, Boundary value problem for a coupled system of nonlinear fractional differential equations. Appl. Math. Lett.
22 (2009), 64–69. http://dx.doi.org/10.1016/j.aml.2008.03.001

[22] J. Sun, Y. Liu, G. Liu, Existence of solutions for fractional differential systems with anti-periodic boundary conditions. Comput. Math. Appl.
64 (2012), 1557–1566. http://dx.doi.org/10.1016/j.camwa.2011.12.083

[23] J. Wang, H. Xiang, Z. Liu, Positive solution to nonzero boundary values problem for a coupled system of nonlinear fractional differential equations. Int. J. Differ. Equ.
2010 (2010), Article ID 186928, 12 p.

## Comments (0)