Existence of Exactly <em>n</em>+1 Simple 4-Periodic Solutions of the Differential Delay Equation <i>X</i>(<i>T</i>) = -<i>f</i>(<i>x</i>(<i>t</i>-1)).

中国科学院数学与系统科学研究院期刊网

Existence of Exactly n+1 Simple 4-Periodic Solutions of the Differential Delay Equation X(T) = -f(x(t-1)).

Ge Weigao

Acta Mathematica Sinica . 1994, (1): 80 -87 . DOI: 10.1007/BF02561551