Boundary Value Problems (Nov 2021)

On positive solutions of second-order delayed differential system with indefinite weight

  • Fanglei Wang,
  • Ran Ding

DOI
https://doi.org/10.1186/s13661-021-01560-3
Journal volume & issue
Vol. 2021, no. 1
pp. 1 – 17

Abstract

Read online

Abstract In this paper, we study the existence of positive solutions of a second-order delayed differential system, in which the weight functions may change sign. To prove our main results, we apply Krasnosel’skii’s fixed point theorems in cones.

Keywords