Triple Positive Solutions for a Type of Second-Order Singular Boundary Problems
1 Department of Mathematics, Northwest Normal University, Lanzhou 730070, China
2 The School of Mathematics, Physics Software Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
Boundary Value Problems 2010, 2010:376471 doi:10.1155/2010/376471Published: 1 September 2010
This paper deals with the existence of triple positive solutions for a type of second-order singular boundary problems with general differential operators. By using the Leggett-Williams fixed point theorem, we establish an existence criterion for at least three positive solutions with suitable growth conditions imposed on the nonlinear term.