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math.GT2000★ 67 cited
Homology cylinders: an enlargement of the mapping class group
Jerome Levine
We consider a homological enlargement of the mapping class group, defined by homology cylinders over a closed oriented surface (up to homology cobordism). These are important model…
math.GT2000★ 24 cited
Homology surgery and invariants of 3-manifolds
Stavros Garoufalidis, Jerome Levine
We introduce a homology surgery problem in dimension 3 which has the property that the vanishing of its algebraic obstruction leads to a canonical class of π-algebraically-split li…