On the Classicality of Broda's SU(2) Invariant of 4-manifolds

Details On the Classicality of Broda's SU(2) Invariant of 4-manifolds On the Classicality of Broda's SU(2) Invariant of 4-manifolds

1993-09-18

arxiv.org/abs/hep-th/9309102v2

Physics

High Energy Physics

High Energy Physics - Theory

4 pages (revised to state correctly Lemma 1--the correct lemma was proved, and used throughout, but the original statement jum

Scientific paper

Recent work of Roberts has shown that the first surgical 4-manifold invariant of Broda and (up to an unspecified normalization factor) the state-sum invariant arising from the TQFT of Crane-Yetter are equivalent to the signature of the 4-manifold. Subsequently Broda defined another surgical invariant in which the 1- and 2-handles are treated differently. We use a refinement of Roberts' techniques developped by the authors in hep-th/9309063 to show that the "improved" surgical invariant of Broda also depends only on the signature and Euler character

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