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crackjack
#51
Mar6-11, 12:06 PM
P: 117
Quote Quote by tom.stoer View Post
I do not know if there is an explicit formula for a "winding number" of general diffeomorphism.
If you are looking for topological indices that characterize gravitational instantons ( ~ Asymptotically Locally Euclidean solutions), the following might help:
http://empg.maths.ed.ac.uk/Activities/GT/EGH.pdf