摘要
We consider the delay Duffing equation wilers g uniformly almost periodic in t. We provide existence, uniqueness results for almost periodic soltltion of eq.(1), the method of approach uses sub and supersolutions and degree theory.
We consider the delay Duffing equation wilers g uniformly almost periodic in t. We provide existence, uniqueness results for almost periodic soltltion of eq.(1), the method of approach uses sub and supersolutions and degree theory.