Heegaard structure respects complicated JSJ decompositions
Let M be a 3-manifold with torus boundary components T 1 and T 2 . Let ϕ : T 1 → T 2 be a homeomorphism, M ϕ the manifold obtained from M by gluing T 1 to T 2 via the map ϕ , and T the image of T 1 in M ϕ . We show that if ϕ is “sufficiently complicated” then any incompressible or strongly irreducib...
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Published in | Mathematische annalen Vol. 365; no. 3-4; pp. 1137 - 1154 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
01.08.2016
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Subjects | |
Online Access | Get full text |
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Summary: | Let
M
be a 3-manifold with torus boundary components
T
1
and
T
2
. Let
ϕ
:
T
1
→
T
2
be a homeomorphism,
M
ϕ
the manifold obtained from
M
by gluing
T
1
to
T
2
via the map
ϕ
, and
T
the image of
T
1
in
M
ϕ
. We show that if
ϕ
is “sufficiently complicated” then any incompressible or strongly irreducible surface in
M
ϕ
can be isotoped to be disjoint from
T
. It follows that every Heegaard splitting of a 3-manifold admitting a “sufficiently complicated” JSJ decomposition is an amalgamation of Heegaard splittings of the components of the JSJ decomposition. |
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ISSN: | 0025-5831 1432-1807 |
DOI: | 10.1007/s00208-015-1314-9 |