Seba, DjamilaHabani, SadekBenaissa, AbbesRebai, Hamza2021-06-142021-06-142021017042141099-1476 Electronichttps://doi.org/10.1002/mma.6020https://onlinelibrary.wiley.com/doi/abs/10.1002/mma.6020https://dspace.univ-boumerdes.dz/handle/123456789/7007This paper is devoted to the existence of weak solutions for a multipoint fractional integral boundary value problem of an impulsive nonlinear differential equation involving multiorders fractional derivatives and deviating argument. We make use of an appropriate fixed point theorem combined with the technique of measures of weak noncompactness. Our investigation is considered in a Banach space. The applicability of the obtained results is illustrated by an exampleenBanach spaceBoundary value problemCaputo fractional derivativeFixed pointHenstock-Kurzweil-Pettis integralMeasure of weak noncompactnessArticle