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Oscillation criteria for fourth order half-linear differential equations

Jaroslav Jaroš, Kusano Takaŝi, Tomoyuki Tanigawa (2020)

Archivum Mathematicum

Criteria for oscillatory behavior of solutions of fourth order half-linear differential equations of the form ( | y ' ' | α sgn y ' ' ) ' ' + q ( t ) | y | α sgn y = 0 , t a > 0 , A where α > 0 is a constant and q ( t ) is positive continuous function on [ a , ) , are given in terms of an increasing continuously differentiable function ω ( t ) from [ a , ) to ( 0 , ) which satisfies a 1 / ( t ω ( t ) ) d t < .

Oscillation Criteria for Nonlinear Differential Equations of Second Order with Damping Term

Elabbasy, E. M., Elhaddad, W. W. (2008)

Serdica Mathematical Journal

2000 Mathematics Subject Classification: 34C10, 34C15.Some new criteria for the oscillation of all solutions of second order differential equations of the form (d/dt)(r(t)ψ(x)|dx/dt|α−2(dx/dt))+ p(t)φ(|x|α−2x,r(t) ψ(x)|dx/dt|α−2(dx/dt))+q(t)|x|α−2 x=0, and the more general equation (d/dt)(r(t)ψ(x)|dx/dt|α−2(dx/dt))+p(t)φ(g(x),r(t) ψ(x)|dx/dt|α−2 (dx/dt))+q(t)g(x)=0, are established. our results generalize and extend some known oscillation criterain in the literature.

Oscillation criteria for nonlinear differential equations with p ( t ) -Laplacian

Yutaka Shoukaku (2016)

Mathematica Bohemica

Recently there has been an increasing interest in studying p ( t ) -Laplacian equations, an example of which is given in the following form ( | u ' ( t ) | p ( t ) - 2 u ' ( t ) ) ' + c ( t ) | u ( t ) | q ( t ) - 2 u ( t ) = 0 , t > 0 . In particular, the first study of sufficient conditions for oscillatory solution of p ( t ) -Laplacian equations was made by Zhang (2007), but to our knowledge, there has not been a paper which gives the oscillatory conditions by utilizing Riccati inequality. Therefore, we establish sufficient conditions for oscillatory solution of nonlinear differential equations with...

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