Index theory and multiple solutions for asymptotically linear second-order delay differential equations
Abstract This paper is concerned with the existence of periodic solutions for asymptotically linear second-order delay differential equations. We will establish an index theory for the linear system directly in the sense that we do not need to change the problem of the original linear system into th...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-01-01
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| Series: | Boundary Value Problems |
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| Online Access: | https://doi.org/10.1186/s13661-023-01693-7 |