Opuscula Math. 35, no. 2 (2015), 181-190

Opuscula Mathematica

Bounded, asymptotically stable, and L1 solutions of Caputo fractional differential equations

Muhammad N. Islam

Abstract. The existence of bounded solutions, asymptotically stable solutions, and \(L^1\) solutions of a Caputo fractional differential equation has been studied in this paper. The results are obtained from an equivalent Volterra integral equation which is derived by inverting the fractional differential equation. The kernel function of this integral equation is weakly singular and hence the standard techniques that are normally applied on Volterra integral equations do not apply here. This hurdle is overcomed using a resolvent equation and then applying some known properties of the resolvent. In the analysis Schauder's fixed point theorem and Liapunov's method have been employed. The existence of bounded solutions are obtained employing Schauder's theorem, and then it is shown that these solutions are asymptotically stable by a definition found in [C. Avramescu, C. Vladimirescu, On the existence of asymptotically stable solution of certain integral equations, Nonlinear Anal. 66 (2007), 472-483]. Finally, the \(L^1\) properties of solutions are obtained using Liapunov's method.

Keywords: Caputo fractional differential equations, Volterra integral equations, weakly singular kernel, Schauder fixed point theorem, Liapunov's method.

Mathematics Subject Classification: 34K20, 45J05, 45D05.

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  • Muhammad N. Islam
  • University of Dayton, Department of Mathematics, Dayton, OH 45469-2316 USA
  • Received: 2013-12-09.
  • Revised: 2014-03-14.
  • Accepted: 2014-05-14.
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Cite this article as:
Muhammad N. Islam, Bounded, asymptotically stable, and L1 solutions of Caputo fractional differential equations, Opuscula Math. 35, no. 2 (2015), 181-190, http://dx.doi.org/10.7494/OpMath.2015.35.2.181

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