Saturday, 7 October 2006

dg.differential geometry - Cobordisms of bundles?

Is there a notion of a cobordism which is compatible with bundle structure?



That is, if I have bundles E and F, is it the case that the manifold W with E and F as boundary components, can be made into a bundle whose bundle structure, when restricted to E or F, is the bundle structure of E or F.



And, particularly, when can I connect E and F this way (not just when they're cobordant, but when this cobordism is compatable with this structure)? And what can I say about the bundle structure of W, knowing what E and F look like? (e.g., if E and F are G-bundles what can I say about the group action on W?)



Also, can anyone point me to any particular references which discuss this? I spent a few hours in our (fairly small) math library looking for something like this, but haven't been able to find anything that seems to discuss this. But I may just not know the right catch phrases to search for!

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