Journal of Jilin University Science Edition ›› 2025, Vol. 63 ›› Issue (5): 1239-1246.

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Existence of Positive Solutions for a Class of First-Order Semi-positone Preiodic Boundary Value Problems

WANG Yufang   

  1. College of Mathematics and Statistics, Northwest Normal University, Lanzhou 730070, China
  • Received:2024-12-25 Online:2025-09-26 Published:2025-09-26

Abstract: The author considers the existence of positive solutions for the first-order semi-positone problem. Based on the fixed point theorem of  Krasnoselskill, the author proves that there exists λ*>0, such that the problem has at least one solution when 0<λ<λ*.

Key words: periodic boundary value problem, semi-positone, discretion, positive solution, fixed point theorem of Krasnoselskill

CLC Number: 

  • O175.8