简介:Inthispaper,westudyasingularthird-orderthree-pointboundaryvalueproblem.Byusingafixed-pointtheoremofconeexpansion-compressiontype,weestablishresultsontheexistenceofatleastone,atleasttwo,andnpositivesolutionstotheboundaryvalueproblem.Finallywegiveanexample.