By means of the continuation theorem of coincidence degree theory, some newresults on the non-existence, existence and unique existence of periodic solutions for a kind ofsecond order neutral functional differential e...By means of the continuation theorem of coincidence degree theory, some newresults on the non-existence, existence and unique existence of periodic solutions for a kind ofsecond order neutral functional differential equation are obtained.展开更多
基金The project is supported by the National Natural Science Foundation 19871005
文摘By means of the continuation theorem of coincidence degree theory, some newresults on the non-existence, existence and unique existence of periodic solutions for a kind ofsecond order neutral functional differential equation are obtained.
基金Research Foundation for Doctor Station of Ministry of Education of China(20113401110001)Nature Science Foundation of Anhui Province(1308085MA01)+1 种基金Excellent Young Talents Foundation of Anhui Province(2013SQRL080ZD)Graduate Academic Innovation Research Project of Anhui University(10117700020)