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Fučík, Svatopluk ; Nečas, Jindřich ; Souček, Jiří ; Souček, Vladimír
Strengthening upper bound for the number of critical levels of nonlinear functionals. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 13 (1972), issue 2, pp. 297-310
MSC: 35D05, 47H15, 47J05, 49G99, 49R50, 58E05 | MR 0305169 | Zbl 0253.58006
References:
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