The Tameness Conjecture for train-track generic automorphisms

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Let MM be a connected sum of copies of S2×S1S^2\times S^1, with canonical splitting M=H1∪H2M=H_1\cup H_2, and let f:M→Mf:M\to M be a train-track generic automorphism. A one-dimensional lamination in MM is tame if every point has a flat chart neighborhood in MM.

Tameness Conjecture. The automorphism ff can be isotoped so that it preserves the splitting and the induced automorphism gg on H1H_1 is train-track generic and has a tame one-dimensional invariant lamination.

The conjecture concerns whether the invariant laminations associated with train-track generic automorphisms can be chosen without the pathological self-linking found in typical generic automorphisms. The supplied text does not state whether the conjecture has been resolved.

References

Primary source

Leonardo N. Carvalho and Ulrich Oertel, “A classification of automorphisms of compact 3-manifolds”, arXiv:math/0510610 (2005).

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