## Proceedings of the International School of Physics "Enrico Fermi.", Volume 25N. Zanichelli, 1953 - Nuclear physics |

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Page 62

We now consider the behaviour in time of the

whether any of them can grow indefinitely. ... Assuming the É,'s form a complete

set we expand any initial

a ...

We now consider the behaviour in time of the

**perturbations**and in particularwhether any of them can grow indefinitely. ... Assuming the É,'s form a complete

set we expand any initial

**perturbation**§o = X a,é, * and then 3 = X a,é, exp [io,t) isa ...

Page 132

To study the instabilities of the collision-dominated column one considers in a

stationary mode. Since we consider a three-component plasma in a longitudinal

...

To study the instabilities of the collision-dominated column one considers in a

**perturbation**theory the growth of small**perturbations**superimposed on thestationary mode. Since we consider a three-component plasma in a longitudinal

...

Page 172

For the three resistive 9 modes, lines of force that are initially distinct link up

during the

conductivity limit and disappear altogether, their characteristic times becoming

infinite.

For the three resistive 9 modes, lines of force that are initially distinct link up

during the

**perturbation**. These modes have no counterpart in the infinite-conductivity limit and disappear altogether, their characteristic times becoming

infinite.

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### Contents

LEZIONI | 1 |

carrier mass | 159 |

hydrodynamique au voisinage dun axe magnétique | 214 |

Copyright | |

2 other sections not shown

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### Common terms and phrases

adiabatic invariant amplitude approximation assumed Boltzmann equation boundary conditions boundary layer calculated cathode charge coefficient collision components consider const constant contraction corresponds courbe critère current density Debye length derived differential equations discharge dispersion relation distribution function dºr eigenvalue electric field electromagnetic waves electrostatic energy principle equations of motion equilibrium exp i(k exp ioctl exp ior experimental finite fluid theory frequency given Hence instability integral interaction ioctl ionized KRUSKAL l'axe magnétique lignes limit lowest order magnetic field Maxwell's equations negative ions nonlinear obtain parameter particle perturbation Phys plasma oscillations Plasma Physics Poisson's equation potential problem quantities radial region satisfied saturation current ſº solution solving stabilité stability surface temperature thermal tion values vanish variables vector velocity voisinage waves in plasmas zero zero-order