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一类二阶非线性常微问题正解的存在区间

Release Time:2019-03-12  Hits:

Indexed by: Journal Article

Date of Publication: 2018-07-15

Journal: 高等数学研究

Volume: 21

Issue: 4

Page Number: 74-76,124

ISSN: 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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