Infinitesimal differential geometry.
La distance intégrée de Kobayashi sur une variété Banachique complexe
Nel caso di una varietà di Banach complessa , si costruisce una regolarizzata della metrica infinitesimale di Kobayashi. Se ne deduce una distanza integrata di Kobayashi e, se è iperbolica, si mostra che questa distanza è uguale alla distanza di Kobayashi.
Le groupe des automorphismes analytiques d'un domaine borné d'un espace de Banach complexe. Application aux domaines bornés symétriques
Levi forms, differential forms of type (0,1) and pseudoconvexity in Banach spaces
Notes on differential calculus in topological liear spaces.
On the differential geometry of some classes of infinite dimensional manifolds
Albeverio, Kondratiev, and Röckner have introduced a type of differential geometry, which we call lifted geometry, for the configuration space of any manifold . The name comes from the fact that various elements of the geometry of are constructed via lifting of the corresponding elements of the geometry of . In this note, we construct a general algebraic framework for lifted geometry which can be applied to various “infinite dimensional spaces” associated to . In order to define a lifted...
On the global stable manifold
We give an alternative proof of the stable manifold theorem as an application of the (right and left) inverse mapping theorem on a space of sequences. We investigate the diffeomorphism class of the global stable manifold, a problem which in the general Banach setting gives rise to subtle questions about the possibility of extending germs of diffeomorphisms.
Projective limits of Banach vector bundles.
Propriété de Runge et enveloppe d'holomorphie de certaines variétés analytiques de dimensions infinies
Smooth bundles of generalized half-densities
Smooth bundles, whose fibres are distribution spaces, are introduced according to the notion of smoothness due to Frölicher. Some fundamental notions of differential geometry, such as tangent and jet spaces, Frölicher-Nijenhuis bracket, connections and curvature, are suitably generalized. It is also shown that a classical connection on a finite-dimensional bundle naturally determines a connection on an associated distributional bundle.
Structures de variétés bimodelées et dynamique analytique des milieux continus
Sur la dérivation de Lie dans les variétés de Banach
Sur la pseudo-convexité et la convexité polynomiale en dimension infinie
Dans la première partie, nous étudions la pseudo-convexité dans les elc et montrons que, dans le cas normé comme dans le cas non normé, les diverses notions introduites coïncident. Dans la deuxième partie, nous étudions la convexité polynomiale et prouvons des théorèmes d’approximation du type Runge ou Oka-Weil.
The Lie group of real analytic diffeomorphisms is not real analytic
We construct an infinite-dimensional real analytic manifold structure on the space of real analytic mappings from a compact manifold to a locally convex manifold. Here a map is defined to be real analytic if it extends to a holomorphic map on some neighbourhood of the complexification of its domain. As is well known, the construction turns the group of real analytic diffeomorphisms into a smooth locally convex Lie group. We prove that this group is regular in the sense of Milnor. ...
The Schwarz Lemma and the Hadamard Three-Spheres Theorem in Hilbert Spaces.
Un teorema de extensión de Whitney en dimensión infinita y clase p.
Se prueba que si f es una aplicación de clase p en un abierto de un cuadrante de un espacio de Banach real, entonces en cada punto del abierto, f admite una extensión de clase p a un entorno global de dicho punto.Se utiliza este resultado para establecer un teorema de extensión de Whitney en un cuadrante de un espacio de Banach y un teorema de la función inversa en variedades con borde anguloso.
Un théorème de fonctions implicites. Applications
On énonce un théorème de fonctions implicites du type de Nash-Moser, et on indique une application à l’étude des singularités de fonctions différentiables réelles (problème du déploiement universel de Thom).
Un théorème de fonctions implicites sur certains espaces de Fréchet et quelques applications
Una variedad diferenciable de dimensión infinita, separada y no regular.
A partir de un espacio de Hilbert, E, de dimensión infinita separable y de un elemento λ de L(E,R) - {0} se construye un homeomorfismo h0 de(Eλ+ - Ker λ) U {0}sobre E con las topologías usuales tal que h0(0) = 0 y h0|Eλ+ - Ker λ es un difeomorfismo de clase ∞ de Eλ+ - Ker λ sobre E - {0}, con las estructuras diferenciables de clase ∞ usuales. Mediante h0 se construye una variedad diferenciable de dimensión infinita, separada y no regular.
Zur Theorie der harmonischen Differentialformen.