Advances in MathematicsVolume 56, Issue 1, April 1985, Pages 39-91Equivalence of connectionsAuthor links open overlay panelM.J Cowen ∗, R.G Douglas †Show moreShareCitehttps://doi.org/10.1016/0001-8708(85)90084-2Get rights and contentUnder an Elsevier user licenseopen archivePrevious article in issueNext article in issueRecommended articlesCited by (0)∗Supported by the NSF and by the Weizmann Institute of Science†Supported by the NSFCopyright © 1985 Published by Elsevier Inc.