Let us consider a problem of mechanics defined by the system of ordinary differential equationsand let us investigate the stability of a particular solution q i 0 (t). For purposes of simplicity, we have omitted the influence of any parameters. The following variational equations are obtained by the well-known transformation (1.2) q i = q i 0 + ξ i :.
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© Springer Fachmedien Wiesbaden 1987