A class of nonlinear eigenvalue problems with four solutions (JNCA)
Volume 11
Number 3
pp. 503-511
A class of nonlinear eigenvalue problems with four solutions
Biagio Ricceri
Key words Mathematices Subject Classification
Critical point, global minimum, multiplicity, mini-max inequality, Neumann problem 47J10, 47J30, 58E05, 49J35, 34B08
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