References
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- Garbuza , T. 2006 . Fučik spectrum for the second order Sturm‐Liouville boundary value problem . Collections of papers. University of Latvia Institute of Mathematics and Computer science ,
- Kufner , A. and S&Fu;ccaron;ik , S. 1988 . Nonlinear Differential Equations , Moscow : Nauka . (Russian Edition)
- Rynne , B.P. 2000 . The Fučik spectrum of general Sturm‐Liouville problems . Journal of Differential Equations , 161 : 87 – 109 .