Linear systems with a quadratic integral and symplectic geometry of artin spaces
β Scribed by V.V. Kozlov
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 770 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0021-8928
No coin nor oath required. For personal study only.
β¦ Synopsis
New relations are established between the spectrum of a linear system and the indices of inertia of its quadratic integral. A detailed investigation is made of the case in which the positive and negative indices of inertia of the quadratic integral are identical. Conditions are found under which the singular planes will be Lagrangian relative to some natural symplectic structure. They are closely related to the conditions for strong stability of a linear system. The general results are applied to the classical problem of gyroscopic stabilization.
π SIMILAR VOLUMES
The non-similar normal modes of free oscillations of a coupled non-linear oscillator are examined. So far, the study of non-linear vibrations has been based on the assumption that the system is admissible. This requirement is satis"ed when the sti!ness of the springs are odd functions of their displ