Titlebook: Dynamics of Infinite Dimensional Systems; Shui-Nee Chow,Jack K. Hale Conference proceedings 1987 Springer-Verlag Berlin Heidelberg 1987 bi

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Nilpotent Normal Form in Dimension 4,The normal form for a vectorfield in R. with irreducible nilpotent linear part is given and we prove that it is minimal. A counting argument suffices to show that we have indeed all the terms in the normal form. The normal form is not unique.

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On Operators Which Leave Invariant a Half-Space,The purpose of this talk is to give a geometric characterization of those linear continuous operators A:D(A) E→E (D(A) dense in E), where E is a real locally convex topological vector space, whose adjoint A*:D(A*) E*→E* (E* the dual space of E) has a nonnegative real eigenvalue.

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Generic Properties of Equilibrium Solutions by Perturbation of the Boundary,We study equilibrium solutions of.(which may be a system, u=col (u.,...,u.)), with boundary conditions.

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