On the oscillation of solutions of third-order differential equations with non-positive neutral coefficients

Abstract

The oscillation property of third-order differential equations with non-positive neutral coefficients is discussed. New sufficient conditions are provided to guarantee that every solution of the considered equation is almost oscillatory. Both the canonical and non-canonical cases are considered. Illustrative examples are introduced to support the obtained results.

Keywords

• oscillation
• third-order
• nonpositive neutral coefficients