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一类二阶非线性常微问题正解的存在区间

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Indexed by:期刊论文

Date of Publication:2018-07-15

Journal:高等数学研究

Volume:21

Issue:4

Page Number:74-76,124

ISSN No.:1008-1399

Key Words:二阶非线性;常微分方程;初值问题;正解

Abstract:考虑二阶非线性常微分方程的初值问题{v''(r)-av'(r)=-λ | v(r) |p,r>0,v'(0)=0,v(0)=l>0,其中a∈R,λ>0,0<p≠1为常数,得到对任意R>0,存在l>0,使得此问题于(0,R)上存在正解v,满足v(R)=0.

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