THE UNIQUE EXISTENCE OF PERIODIC SOLUTION FOR A CLASS OF ORDINARY DIFFERENTIAL EQUATION SYSTEMS AT RESONANCE
LI SHU-JIE;FENG DE-XING
Journal of Systems Science and Mathematical Sciences ›› 1986, Vol. 6 ›› Issue (4) : 241-246.
THE UNIQUE EXISTENCE OF PERIODIC SOLUTION FOR A CLASS OF ORDINARY DIFFERENTIAL EQUATION SYSTEMS AT RESONANCE
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