Four versus two solutions of semilinear elliptic boundary value problems

• DOI: 10.1007/s005260100104
• Publication Date: 2003-02-27T11:14:03Z
• Authors: Zhaoli Liu; Jingxian Sun
• Keywords: Value (mathematics)

This paper concerns the existence of four (or six) solutions of semilinear elliptic boundary value problems provided that two disorderly solutions are known. The results are obtained under very generic conditions.