摘要

The oscillation of solutions of the n th‐order delay differential equation r 2 ( t ) r 1 ( t ) y ( n ? 2 ) ( t ) α ′ ′ + p ( t ) y ( n ? 2 ) ( t ) α + q ( t ) f ( y ( g ( t ) ) ) = 0(#br)was studied in [S. R. Grace and A. Zafer, Math. Meth. Appl. Sci. 2016, 39 1150–1158] when n is even and the n odd...

全文