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Related papers: Integrability on Direct Limit Banach manifolds

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This paper concerns the problem of integrability of non closed distributions on Banach manifolds. We introduce the notion of weak distribution and we look for conditions under which these distributions admit weak integral submanifolds. We…

Differential Geometry · Mathematics 2011-12-06 Fernand Pelletier

We give an integrability criterion for a projective limit of Banach distributions on a Fr\'echet manifold which is a projective limit of Banach manifolds. This leads to a result of integrability of projective limit of involutive bundles on…

Differential Geometry · Mathematics 2022-02-09 Fernand Pelletier

We consider regulated curves in a Banach bundle whose projection on the basis is continuous with regulated derivative. We build a Banach manifold structure on the set of such curves. This result was previously obtained for the case of…

Functional Analysis · Mathematics 2025-04-07 Tomasz Goliński , Fernand Pelletier

We prove that the classical integrability condition for almost complex structures on finite-dimensional smooth manifolds also works in infinite dimensions in the case of almost complex structures that are real analytic on real analytic…

Differential Geometry · Mathematics 2007-05-23 Daniel Beltiţă

After collecting a number of results on interval and almost interval preserving linear maps and vector lattice homomorphisms, we show that direct systems in various categories of normed vector lattices and Banach lattices have direct…

Functional Analysis · Mathematics 2023-05-30 Chun Ding , Marcel de Jeu

We investigate the integrability of 2-dimensional invariant distributions (tangent sub-bundles) which arise naturally in the context of dynamical systems on 3-manifolds. In particular we prove unique integrability of dynamically dominated…

Dynamical Systems · Mathematics 2016-02-17 Stefano Luzzatto , Sina Tureli , Khadim War

Let G be a Lie group which is the union of an ascending sequence of Lie groups G_n (all of which may be infinite-dimensional). We study the question when G is the direct limit of the G_n's in the category of Lie groups, topological groups,…

Group Theory · Mathematics 2007-05-23 Helge Glockner

We show in this paper that every bijective linear isometry between the continuous section spaces of two non-square Banach bundles gives rise to a Banach bundle isomorphism. This is to support our expectation that the geometric structure of…

Functional Analysis · Mathematics 2014-02-27 Ming-Hsiu Hsu , Ngai-Ching Wong

We present a formalisation of the existence and uniqueness theorems of integral curves of vector fields on Banach manifolds in the Lean theorem prover. First, we formalize properties of differential equations on Banach spaces (the…

Differential Geometry · Mathematics 2026-02-17 Weichen Winston Yin , Yury Kudryashov

This paper is concerned with the notions of admissibility, exact controllability, exact observability and regularity of linear systems in the Banach space setting. It is proved that admissible controllability, exact controllability,…

Functional Analysis · Mathematics 2016-06-23 Zhan-Dong Mei , Ji-Gen Peng

We investigate infinitesimal properties of sets of ordered $n$-uples of idempotents in a symmetric Banach $*$-algebra. These sets are called flag manifolds and carry several interesting bundles that hold an important role in some areas of…

Functional Analysis · Mathematics 2016-11-07 Daniel Beltita , Jose E. Gale

We equip the direct limit of tangent bundles of paracompact finite dimensional manifolds with a structure of convenient vector bundle with structural group $GL(\infty,\mathbb{R}) =\underrightarrow{\lim}GL(\mathbb{R}^{n})$.

Differential Geometry · Mathematics 2013-08-15 Ali Suri , Patrick Cabau

To give a criterion for the integrability of Banach-Lie triple systems, we follow the construction of the period group of a Lie algebra and define the period group of a Lie triple system as an analogous concept. We show that a Lie triple…

Differential Geometry · Mathematics 2012-03-15 Michael Klotz

We show that every metric space with bounded geometry uniformly embeds into an explicit reflexive Banach space (a direct sum of l^p spaces). In the case of discrete groups we show the analogue of a-T-menability. That is, we construct a…

Operator Algebras · Mathematics 2016-09-07 Nathanial Brown , Erik Guentner

The existence of a Banach limit as a translation invariant positive continuous linear functional on the space of bounded scalar sequences which is equal to 1 at the constant sequence (1,1,...,1,...) is proved in a first course on functional…

Functional Analysis · Mathematics 2019-06-12 M. A. Sofi

In this paper, using the structures of cone and bicone fields on vector bundles, the author introduces a ILB (inverse limit of Banach)- manifold structure on $\mathcal M$ the space of Riemannian metrics on a noncompact manifold $M$. In the…

Differential Geometry · Mathematics 2016-09-07 Catalin C. Vasii

A boundary for a Banach space is a subset of the dual unit sphere with the property that each element of the Banach space attains its norm on an element of that subset. Trivially, the pointwise convergence with respect to such a boundary is…

Functional Analysis · Mathematics 2008-07-18 Hermann Pfitzner

We endow projective (resp. direct) limits of Banach tensor structures with Fr\'{e}chet (resp. convenient) structures and study adapted connections to $G$-structures in both frameworks. This situation is illustrated by a lot of examples.

Differential Geometry · Mathematics 2019-01-28 P. Cabau , F. Pelletier

This paper introduces the novel concept of fractal interpolation over curves in Banach spaces. The contents are based on the usual methodologies involving the fractal interpolation problem over intervals but the current approach…

Functional Analysis · Mathematics 2022-09-05 Peter R. Massopust

We characterize projective and injective Banach modules in approximate terms, generalizing thereby a characterization of contractible Banach algebras given by F. Ghahramani and R. J. Loy. As a corollary, we show that each uniformly…

Functional Analysis · Mathematics 2019-05-01 A. Yu. Pirkovskii
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