Half-linear differential equations of fourth order: oscillation criteria of solutions

Abstract In this paper, we are concerned with the oscillation of solutions to a class fourth-order delay differential equations p -Laplacian like operators $( r ( t ) \vert x^{\prime \prime } ^{p_{1}-2}x^{\prime ^{\prime }+q x \tau ^{p_{2}-2}x =0$ ( r t ) | x ? p 1 ? 2 ? + q ? = 0 and }+\sigma ^{p_{1}-2}x^{ +q ? . New criteria presented by comparison technique employing Riccati transformation. Moreover, our results an extension complement previous in literature. Two examples shown illustrate conclusions.