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L’index d’un système hamiltonien linéaire. (Index of a linear Hamiltonian). (French) Zbl 0592.58022
Summary: There are now several ways to define the index of a linear Hamiltonian system. We intend to compare these different indices, to give an iteration formula, and to prove new properties.

MSC:
37J99 Dynamical aspects of finite-dimensional Hamiltonian and Lagrangian systems
70H05 Hamilton’s equations
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