PageHeader : Funkcialaj Ekvacioj, 6 (1964), 63?88
Title : Relations between Periods and Amplitudes of
Title : Periodic Solutions of $\ddot{x}+g(x)=0^{1)}$
AuthorInfo : By Minora URABE
AuthorInfo : (Kyushu University and Mathematics Research Center)
section : 1. Introduction.
section : 2. Lemmas.
section : 3. The relations of the period and the half-periods to the maximum
section : 4. The relations of the period to the amplitude and the half-ampli-
section : 5. The relations of the half-periods to the maximum velocity and
section : REFERENCES