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Jan 1, 2014 at 22:45 history edited Sam Nead CC BY-SA 3.0
Regina -> Recognizer
Nov 16, 2012 at 22:05 comment added Ryan Budney Thanks Bruno. Yes, I've identified the 3rd triangulation now. There's a single torus in its JSJ-decomposition, which separates the manifold into a figure-8 complement union the orientable $I$-bundle over the Klein bottle. So this is one of those manifolds where the "geometric" decomposition isn't the same as, say, the Hatcher 3-manifold lecture notes version of the JSJ-decomposition.
Nov 16, 2012 at 12:01 history edited Bruno Martelli CC BY-SA 3.0
ehm...
Nov 16, 2012 at 10:11 history edited Bruno Martelli CC BY-SA 3.0
added 263 characters in body
Nov 16, 2012 at 10:06 history answered Bruno Martelli CC BY-SA 3.0