Hierarchical Electrodynamics: Key Concepts, Ideas, and Investigation Methods: High-Current Free Electron Lasers as a Historical Relic of the Star Wars Epoch. Elements of the Theory of Hierarchic Dynamic Systems. Hierarchic Oscillations. Hierarchic Waves. Hierarchic Description. Hierarchic Systems with Fast Rotating Phases. Electron Oscillations in FEL-Like Electronic Systems. Hierarchic Oscillations and Waves: The Foundation of the World?
High-Current Free Electron Lasers: Free Electron Lasers for the Cluster Systems. General Description of the FEL Models. Parametrical (Ordinary) Free Electron Lasers: Weak-Signal Theory. Ordinary (Parametrical) Free Electron Lasers: Cubic-Nonlinear Theory. Two-Stream Superheterodyne Free Electron Lasers. Plasma-Beam and Parametrical Electron-Wave Superheterodyne FEL.