Philos' inequality on time scales and its application in the oscillation theory

Basak Karpuz

In [Bull. Acad. Polon. Sci. Sér. Sci. Math. 29 (1981), no.~7-8, 367--370], Philos proved the following result: Let $f:[t_0,\infty {)}_{\mathbb{R}}\to \mathbb{R}$ be an $n$-times diff…