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三角『占卜术』
【出 处】
：
数学大王
【发表日期】
：
2020年2期
其他文献
Properties of Complex Oscillation of Solutions of a Class of Higher Order Linear Differential Equati
Let A(z) be an entire function with μ(A) ＜ 1/2 such that the equation f(k) +A(z)f =0,where k ≥ 2,has a solution f with λ(f) ＜ μ(A),and suppose that A1 =A+h,wh