Liu, Yansheng2021-05-142021-05-142004-10-14Liu, Y. (2004). Multiple positive solutions to fourth-order singular boundary-value problems in abstract spaces. <i>Electronic Journal of Differential Equations, 2004</i>(120), pp. 1-13.1072-6691https://hdl.handle.net/10877/13541We prove the existence of multiple positive solutions to singular boundary-value problems for fourth-order equations in abstract spaces. Our results improve and extend that obtained in [14,15,16], even in the scalar case.Text13 pages1 file (.pdf)enAttribution 4.0 InternationalBanach spaceSingularityPositive solutionsFourth order equationArticleThis work is licensed under a Creative Commons Attribution 4.0 International License.