Comparison theorems for oscillation of second-order half-linear differential equations
- Cite this article as:
- Sugie, J. & Yamaoka, N. Acta Math Hung (2006) 111: 165. doi:10.1007/s10474-006-0029-5
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We establish new comparison theorems on the oscillation of solutions of a class of perturbed half-linear differential equations. These improve the work of Elbert and Schneider  in which connections are found between half-linear differential equations and linear differential equations. Our comparison theorems are not of Sturm type or Hille--Wintner type which are very famous. We can apply the main results in combination with Sturm's or Hille--Wintner's comparison theorem to a half-linear differential equation of the general form (|x'|α-1x')' + a(t) |x|α-1x = 0.