Chinese Quarterly Journal of Mathematics ›› 1990, Vol. 5 ›› Issue (1-2): 14-20.
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Abstract: 本文研究了更为一般的二阶非线性微分方程(r(f)(?)(x)x′)+a(t)f(x)=0,并且得到了此类方程的一些新的振动准则。
刘玉忠. 二阶非线性微分方程的振动准则[J]. Chinese Quarterly Journal of Mathematics, 1990, 5(1-2): 14-20.
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https://sxjk.magtechjournal.com/EN/Y1990/V5/I1-2/14