共 50 条
- [21] An application of the almost-positivity of a class of fourth-order pseudodifferential operators JOURNAL D ANALYSE MATHEMATIQUE, 1997, 71 (1): : 41 - 57
- [24] Multiple solution for a fourth-order nonlinear eigenvalue problem with singular and sublinear potential STUDIA UNIVERSITATIS BABES-BOLYAI MATHEMATICA, 2023, 68 (01): : 139 - 149
- [26] EXISTENCE OF THREE SOLUTIONS FOR A DOUBLY EIGENVALUE FOURTH-ORDER BOUNDARY VALUE PROBLEM TAIWANESE JOURNAL OF MATHEMATICS, 2011, 15 (01): : 201 - 210
- [30] Hamiltonian formulation of a class of constrained fourth-order differential equations in the Ostrogradsky framework JOURNAL OF PHYSICS COMMUNICATIONS, 2018, 2 (12):