Multiplicity of critical points in presence of a linking: application to a superlinear boundary value problem
We consider a general nonlinear elliptic problem of the second order whose associated functional presents two linking structures and we prove the existence of three nontrivial solutions to the problem.
2000 Mathematics Subject Classification:35J65 35J20 49J40.
Key words:∇-condition linking superlinear and subcritical equations.
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© Birkhäuser Verlag, Basel 2004