摘要
By employing Mawhin’s continuation theorem and some analytic techniques, we study the existence of periodic solutions to a kind of neutral functional differential equation with delays. Our results generalize the corresponding ones of known litera-ture.
By employing Mawhin’s continuation theorem and some analytic techniques, we study the existence of periodic solutions to a kind of neutral functional differential equation with delays. Our results generalize the corresponding ones of known litera-ture.
基金
Ministry of Education of Science and Technology of ImportantProjects (No.207047)
Natural Science Foundation of Anhui Province of China (No.050460103)
the Natural Science Foundation of Anhui Province of China (No.2005kj031ZD).