Multiple solutions for an elliptic system with indefinite Robin boundary conditions
Multiplicity of solutions is proved for an elliptic system with an indefinite Robin boundary condition under an assumption that links the linearisation at 0 and the eigenvalues of the associated linear scalar operator. Our result is based on a precise calculation of the topological degree of a suita...
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| Format: | Article |
| Language: | English |
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De Gruyter
2017-07-01
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| Series: | Advances in Nonlinear Analysis |
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| Online Access: | https://doi.org/10.1515/anona-2017-0034 |