Representations of non-singular planar tangles by operators

Rui Pedro Carpentier

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Representations of non-singular planar tangles by operators

Rui Pedro Carpentier

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Abstract

In this paper we study how to distinguish two embeddings of a finite collection of disjoint circles into the plane up to planar isotopy. We adopt the spirit of the approach by V. Turaev, Operator Invariants of Tangles, Math. USSR-Izv. 35 (1990), 411--444, by considering a category of planar tangles and representing it in an ``algebraic'' category. From this we can extract a numerical invariant for embeddings of a finite collection of disjoint circles and this invariant is, up to certain choices, complete.

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Rui Pedro Carpentier. 2005-04-17. Representations of non-singular planar tangles by operators. https://arxiv.org/abs/math/0504346

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