Higher monotonicity properties of certain Sturm-Liouville functions. V
Higher monotonicity properties of certain Sturm-Liouville functions. V
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某些 Sturm-Liouville 函数具有更高的单调性。
DOI:
10.1017/s0308210500018011
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发表时间:
1977
期刊:
影响因子:
--
通讯作者:
E. Pavlikova
中科院分区:
文献类型:
--
作者:
E. Pavlikova
Synopsis The principal concern here is with conditions on f or on special solutions of the equation which ensure that the higher differences of the zeros and related quantities of solutions of (1) are regular in sign. In particular, by choosing f(x)= 2v−2x1/v−2, it is shown that if ⅓ ≦|v|<½, then where cvk denotes the kth positive zero of a Bessel function of order v and Δµk = Δk+1 − µk. Lorch and Szego [15] conjectured that (2) should hold for the larger range | v | < ½ but the methods used here do not apply to the range | v <| ⅓.