Variational Approaches for the Existence of Multiple Periodic Solutions of Differential Delay Equations
The existence of multiple periodic solutions of the following differential delay equation 𝑥(𝑡)=−𝑓(𝑥(𝑡−𝑟)) is established by applying variational approaches directly, where 𝑥∈ℝ, 𝑓∈𝐶(ℝ,ℝ) and 𝑟>0 is a given constant. This means that we do not need to use Kaplan and Yorke's reduction technique...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2010-01-01
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| Series: | Abstract and Applied Analysis |
| Online Access: | http://dx.doi.org/10.1155/2010/978137 |
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