数学物理学报(英文版) ›› 2014, Vol. 34 ›› Issue (4): 1025-1028.doi: 10.1016/S0252-9602(14)60066-7
Philip KORMAN, Yi LI
Philip KORMAN, Yi LI
摘要:
This note is an addendum to the results of Lazer and Frederickson [1], and Lazer [4] on periodic oscillations, with linear part at resonance. We show that a small modification of the argument in [4] provides a more general result. It turns out that things are different for the corresponding Dirichlet boundary value problem.
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