摘要：In this paper, we consider the 2nth-order p-Laplacian differential equation with singularity ( φ p ( x ( t ) ) ( n ) ) ( n ) + f ( x ( t ) ) x ′ ( t ) + g ( t , x ( t − σ ) ) = e ( t ) . $$ \bigl(\varphi_{p} \bigl(x(t) \bigr)^{(n)} \bigr)^{(n)}+f \bigl(x(t) \bigr)x'(t)+g \bigl(t,x(t-\sigma) \bigr)=e(t). $$ By applications of coincidence degree theory and some analysis techniques, sufficient conditions for the existence of positive periodic solutions are established.
关键词：positive periodic solution ; p -Laplacian ; 2 n th-order ; singularity
