Abstract
Homotopy methods are used to find sufficient conditions for the solvability of nonlinear boundary value problems of the form
where (α, β) = (0, 1), (1, 0), (0, 0) or (1, 1), \({\phi}\) is a homeomorphism from the open ball \({B(a) \subset \mathbb{R}^n}\) onto \({\mathbb{R}^n}\), f is a Carathéodory function, \({g : \mathbb{R}^n \times \, \mathbb{R}^n \rightarrow \mathbb{R}^m}\) is continuous and m ≤ 2n.
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Mawhin, J. Homotopy and nonlinear boundary value problems involving singular \({\phi}\)-Laplacians. J. Fixed Point Theory Appl. 13, 25–35 (2013). https://doi.org/10.1007/s11784-013-0112-9
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DOI: https://doi.org/10.1007/s11784-013-0112-9