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math.GT2000
Relation between quantum invariants of 3-manifolds and 2-dimensional CW-complexes
Ivelina Bobtcheva, Frank Quinn
We show that the Reshetikhin-Turaev-Walker invariant of 3-manifolds can be normalized to obtain an invariant of 4-dimensional thickenings of 2-complexes. Moreover when the underlyi…
math.GT2000
Dual 2-complexes in 4-manifolds
Frank Quinn
Concerns decompositions of smooth 4-manifolds as the union of two handlebodies, each with handles of index <=2 (``Heegard'' decompositions).Sample result: Two 2-complexes are (up t…