Potential Bounds in Nonpotential Two-Poi
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Mark Krasnosel'skii; Reinhard Mennicken; Dmitrii Rachinskii
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Article
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1997
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John Wiley and Sons
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English
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New conditions are suggested for the existence of solutions of two-point boundaryvalue problems. The situation is studied when monotone bounds of nonlinear terms do not guarantee the solvability of the problems. The approach developed is a combination of variational methods, simple fixed point princ