On Finite Type 3-manifold Invariants V: Rational Homology 3-spheres


We introduce a notion of nite type invariants of oriented rational homology 3-spheres. We show that the map to nite type invariants of integral homology 3-spheres is one-to-one and deduce that the space of nite type invari-ants of rational homology 3-spheres is a ltered commutative algebra with nite dimensional nonzero graded quotients only in degrees… (More)


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