Multiple periodic solutions for a class of second-order nonlinear neutral delay equations

Xiao-Bao Shu and Yuan-Tong Xu

Abstract and Applied Analysis, 2006, vol. 2006, 1-9

Abstract:

By means of a variational structure and Z 2 -group index theory, we obtain multiple periodic solutions to a class of second-order nonlinear neutral delay equations of the form x ″ ( t − τ ) + λ ( t ) f ( t , x ( t ) , x ( t − τ ) , x ( t − 2 τ ) ) = x ( t ) , λ ( t ) > 0 , τ > 0 .

Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlaaa:010252

DOI: 10.1155/AAA/2006/10252

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