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An oscillatory half-linear differential equation

Árpád Elbert, Takaŝi Kusano, Tomoyuki Tanigawa (1997)

Archivum Mathematicum

A second-order half-linear ordinary differential equation of the type ( | y ' | α - 1 y ' ) ' + α q ( t ) | y | α - 1 y = 0 ( 1 ) is considered on an unbounded interval. A simple oscillation condition for (1) is given in such a way that an explicit asymptotic formula for the distribution of zeros of its solutions can also be established.

Asymptotic behavior of solutions of a 2 n t h order nonlinear differential equation

C. S. Lin (2002)

Czechoslovak Mathematical Journal

In this paper we prove two results. The first is an extension of the result of G. D. Jones [4]: (A) Every nontrivial solution for ( - 1 ) n u ( 2 n ) + f ( t , u ) = 0 , in ( α , ) , u ( i ) ( ξ ) = 0 , i = 0 , 1 , , n - 1 , and ξ ( α , ) , must be unbounded, provided f ( t , z ) z 0 , in E × and for every bounded subset I , f ( t , z ) is bounded in E × I . (B) Every bounded solution for ( - 1 ) n u ( 2 n ) + f ( t , u ) = 0 , in , must be constant, provided f ( t , z ) z 0 in × and for every bounded subset I , f ( t , z ) is bounded in × I .

Currently displaying 61 – 80 of 105