Dai, Lixin; Tian, Chuanjun Oscillation criteria for advanced type differential equations. (English) Zbl 0969.34060 J. Ocean Univ. Qingdao 30, No. 2, 364-368 (2000). Summary: This paper, using the method of B. G. Zhang [Funkc. Ekvacioj. Ser. Int. 28, 93-101 (1985; Zbl 0578.34046)], is concerned with first-order functional-differential equations \[ x'(t)=p(t)x(\tau(t)),\quad t\geq 0, \tau(t)>t. \] Some new oscillation criteria are established and corresponding results by Ch. Tian and B. G. Zhang [Bull. Lond. Math. Soc. 31, No. 2, 196-206 (1999; Zbl 0933.34076)] are improved. Cited in 1 Document MSC: 34K11 Oscillation theory of functional-differential equations Keywords:first-order functional-differential equations; oscillation Citations:Zbl 0578.34046; Zbl 0933.34076 PDFBibTeX XMLCite \textit{L. Dai} and \textit{C. Tian}, J. Ocean Univ. Qingdao 30, No. 2, 364--368 (2000; Zbl 0969.34060)