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Multiple positive radial solutions for Neumann elliptic systems with gradient dependence (1711.08269v2)
Published 22 Nov 2017 in math.AP and math.CA
Abstract: We provide new results on the existence, non-existence and multiplicity of non-negative radial solutions for semilinear elliptic systems with Neumann boundary conditions on an annulus. Our approach is topological and relies on the classical fixed point index. We present an example to illustrate our theory.
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