Measure of noncompactness for an infinite system of fractional Langevin equation in a sequence space

Advances in Difference Equations

Ahmed Salem¹  Hashim M. Alshehri¹  Lamya Almaghamsi² 

[1] Department of Mathematics, Faculty of Science, King Abdulaziz University;Department of Mathematics, University of Jeddah;

关键词: Infinite system;    Fraction Langevin equation;    Measure of noncompactness;    Darbo’s fixed point theorem;    Sequence space;   

DOI  :  10.1186/s13662-021-03302-2

来源: DOAJ

【 摘 要 】

Abstract A new sequence space related to the space ℓ p $\ell _{p}$ , 1 ≤ p < ∞ $1\leq p<\infty $ (the space of all absolutely p-summable sequences) is established in the present paper. It turns out that it is Banach and a BK space with Schauder basis. The Hausdorff measure of noncompactness of this space is presented and proven. This formula with the aid the Darbo’s fixed point theorem is used to investigate the existence results for an infinite system of Langevin equations involving generalized derivative of two distinct fractional orders with three-point boundary condition.

【 授权许可】

Unknown