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Integrability of singular distributions on Banach manifolds

Published online by Cambridge University Press:  24 October 2008

David Chillingworth
Affiliation:
Department of Mathematics, University of Southampton, Southampton SO9 5NH, England
Peter Stefan
Affiliation:
School of Mathematics and Computer Science, University College of North Wales, Bangor LL57 2UW, G.B.

Extract

One of the key results in the work of the second author ((7), (8)) on integrability of systems of vectorfields is the theorem which relates integrability of a distribution to the concept of homogeneity. In this paper, we show that the homogeneity theorem also applies in an infinite-dimensional context, and this allows us to derive infinite-dimensional versions of several further results in (7) and (8), formulated in terms of distributions. In particular, we are able to express necessary and sufficient conditions for homogeneity in terms of Lie brackets (Theorems 3 and 4) and to characterize integrable real-analytic distributions (Theorem 5). As a corollary to our Theorem 2, we recover the standard Frobenius theorem on the integrability of regular distributions. We also discuss briefly a basic problem which arises in infinite dimensions when we view an integral manifold of an integrable distribution as part of a singular foliation.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1976

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References

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