
Let \(X\) be a Hilbert space and \(f: X\to \mathbb{R}\) a smooth function with \(f'(0)= 0\). The authors study the equation \(f'(x)= \lambda x\) under the assumption that \(f'\) satisfies a Palais-Smale condition. They show, in particular, that every isolated eigenvalue of \(f''(0)\) is a bifurcation point.
Variational problems in abstract bifurcation theory in infinite-dimensional spaces, Equations involving nonlinear operators (general), Applied Mathematics, Palais-Smale condition, smooth function, bifurcation point, Analysis
Variational problems in abstract bifurcation theory in infinite-dimensional spaces, Equations involving nonlinear operators (general), Applied Mathematics, Palais-Smale condition, smooth function, bifurcation point, Analysis
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