arXiv 0807.12342008-07-10math.DGmath.SG

Reducing almost Lagrangian structures and almost CR geometries to partially integrable structures

Stuart Armstrong

备注：: 6 pages, acknowledgements added

英文摘要：

This paper demostrates a method for analysing almost CR geometries $(H,J)$, by uniquley defining a partially integrable structure $(H,K)$ from the same data. Thus two almost CR geometries $(H,J)$ and $(H',J')$ are equivalent if and and only if they generate isomorphic induced partially integrable CR geometries $(H,K)$ and $(H',K')$, and if the set of CR morphisms between these spaces contains an element that maps $J$ to $J'$. Similar results hold for almost Lagrangian structures.

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