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Boundary value problems involving upper and lower solutions in reverse order
Journal of Computational and Applied Mathematics, 2009Weibing
exaly
Upper and lower solutions method for fuzzy differential equations
SeMA Journal, 2010Juan J. Nieto, Rosana Rodríguez-López
openaire +1 more source
The Method of Lower and Upper Solutions for a Bending of an Elastic Beam Equation
Journal of Mathematical Analysis and Applications, 2000Zhanbing Bai
exaly
A Variational Approach to Upper and Lower Solutions
IMA Journal of Applied Mathematics, 1990openaire +1 more source

