en عمومى General پژوهشي Research paper <br> <div dir="ltr" style="text-align: justify;"></div> <div style="text-align: justify;">In this paper, we establish some fixed point results for the sum and the product of three multivalued mappings, with weakly sequentially closed graph under weak topology features in a Banach algebra. Satisfying a certain sequential condition (P). As an application, our results are used to prove the existence of solutions for a certain non-linear integral inclusion of fractional order.</div> Measures of weak non-compactness, Multivalued mapping, Weakly condensing, Weakly sequentially closed graph, Fixed point theorems, Integral inclusion. 107 131 http://ijmsi.ir/browse.php?a_code=A-10-7001-1&slc_lang=en&sid=1 Amro Alsheikh Ali amryounis@hotmail.com 100319475328460012034 100319475328460012034 No Department of Mathematics, Sfax University, Faculty of Sciences, Sfax, LA 1171, 3000, Tunisia Afif Ben Amar afif.benamar@ipeis.rnu.tn 100319475328460012035 100319475328460012035 Yes Department of Mathematics, Sfax University, Faculty of Sciences, Sfax, LA 1171, 3000, Tunisia