OICC Press Mathematical Sciences 2251-7456 18 4 (December 2024) 2024 01 16 Existence of the solution of nonlinear fractional differential equations via new best proximity point results 10.1007/s40096-023-00521-4 EN Mustafa Aslantaş Department of Mathematics, Çankırı Karatekin University, Çankırı, TR Journal Article 2024 01 16 Abstract In this paper, we obtain some best proximity point results by introducing the concepts of proximal p -contractions of the first type and proximal p -contractions of the second type on partial metric spaces. Thus, some famous results in the literature such as the main result of Altun et al. (Acta Math Hung 162:393–402, 2020) and Basha (J Approx Theory 163(11):1772–1781, 2011) have been extended. Also, we provide some examples where our results are applicable and the results in Haghi et al. (Topol Appl 160:450–454, 2013) are not. Hence, our results are a real generalization of some results in metric spaces and partial metric spaces. Finally, we obtain sufficient conditions for the existence of the solution of nonlinear fractional differential equations via our results.