1. The spectrum of the adjoint representation and the hyperbolicity of dynamical systems;Chicone;J. Differential Equations,1980
2. A generalized Poincaré stability criterion;Chicone,1981
3. A geometric criterion for hyperbolicity of flows;Churchill,1977
4. Functional Analysis and Semi-Groups;Hille,1957
5. Invariant Manifolds;Hirsch,1977