Some criteria for discreteness of spectrum of half-linear fourth order Sturm–Liouville problem
Pavel DrábekDepartment of Mathematics, University of West Bohemia, Univerzitní 22, 306 14, Plzeň, Czech RepublicKomil KulievDepartment of Mathematics, Samarkand State University, University boulevard 15, Samarkand, 140104, UzbekistanMarco MarlettaSchool of Mathematics, Cardiff University, Senghennydd Road, Cardiff, CF24 4AG, UK
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