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中立型二阶非线性微分方程振动性的判据 总被引:7,自引:0,他引:7
Abstract. In this paper ,the oscillation criteria for the solutions of the nonlinear differential e-quations of neutral type of the forms: 相似文献
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In this paper, we give a counterexample to the article "Globally asymptotic stability of a recurrence sequence", Ann. of Diff. Eqs., 17:1(2001), 82-85. 相似文献
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In this paper, we first establish the equivalence of the oscillation of thedifference equations with several delays of the form: Δx_n+sum from i=1 to m(pi(n)x_(n-k_i))=0 for n≥0and the second-order difference equations without delay of the form:where{pj(n)}is a sequence of nonnegative real numbers and{k_i}_(i=1)~m is a setof positive integers. Then we get some "sharp" conditions for oscillation andnon-oscillation of the first equation. 相似文献
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本文研究具有Robin边界条件的二阶奇异泛函微分方程组A(t,x,x)x=f(t,xt,xt)的两点边值问题,给出该两点边值问题的两个解的先验估计定理和一个解的存在定理. 相似文献
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