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168,742 papers · 148 categories

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74148222296 · May 202619922001200920172026
48 results for Turaev construction

We work in the reduced SU(N,K) modular category as constructed recently by Blanchet. We define spin type and cohomological refinements of the Turaev-Viro invariants of closed oriented 3-manifolds and give a formula relating them to Blanchet's invariants. Roberts' definition of the Turaev-Viro state sum is exploited. Fu…

1998-06-17abs ↗pdf ↗

We show that for every spherical category $\C$ with invertible dimension, the Turaev-Viro TQFT admits a splitting into blocks which come from an HQFT, called the Turaev-Viro HQFT. The Turaev-Viro HQFT has the classifying space $B\grad$ as target space, where $\grad$ is a group obtained from the category $\C$. This cons…

2009-03-26abs ↗pdf ↗

New construction of Turaev-Viro invariants invariant under Morita equivalence.

problem Constructing Turaev-Viro invariants invariant under Morita equivalence.
method Pivotal bicategory construction of spherical module categories.
result The invariant recovers the standard Turaev-Viro invariant and is independent of the skeleton.

The paper proves an asymptotic additivity of Turaev-Viro invariants for a family of 3-manifolds.

problem Preserving the Turaev-Viro invariant volume conjecture under gluings of toroidal boundary components.
method Using a construction of hyperbolic cusped 3-manifolds by Agol, the authors show that the asymptotics of Turaev-Viro invariants are additive under certain gluings of elementary pieces.
result The Turaev-Viro invariant volume conjecture is preserved under specific gluings of 3-manifolds.

Chern-Simons and Reshetikhin-Turaev theories are shown equivalent for U(1) gauge group.

problem Equivalence between U(1)U(1) Chern-Simons and Reshetikhin-Turaev TQFTs.
method Proof of natural isomorphism between theories for finite quadratic modules.
result Extended (2+1)(2+1)-dimensional TQFTs are naturally isomorphic.

We concretely construct a 2-categorically extended TQFT that extends the Reshetikhin-Turaev TQFT to cobordisms with corners. The source category will be a well chosen 2-category of decorated cobordisms with corners and the target bicategory will be the Kapranov-Voevodsky 2-vector spaces.

2013-09-14abs ↗pdf ↗

The paper characterizes boundaries in Turaev-Viro TQFTs and Dijkgraaf-Witten theories.

problem Characterizing boundaries in Turaev-Viro TQFTs and Dijkgraaf-Witten theories.
method Identifying explicit boundary locality conditions and proving consistency with state sum models.
result Turaev-Viro and Dijkgraaf-Witten theories with boundary defects admit a state sum description.

In this paper we show that, after completing in the II-adic topology, the Turaev cobracket on the vector space freely generated by the closed geodesics on a smooth, complex algebraic curve XX with an algebraic framing is a morphism of mixed Hodge structure. We combine this with results of a previous paper (arXiv:1710…

2018-07-24abs ↗pdf ↗

In a previous paper, we defined an operation μμ that generalizes Turaev's cobracket for loops on a surface. We showed that, in contrast to the cobracket, this operation gives a formula for the minimum number of self-intersections of a loop in a given free homotopy class. In this paper we consider the corresponding que…

2011-07-24abs ↗pdf ↗

We construct a combinatorial invariant of 3-orbifolds with singular set a link that generalizes the Turaev torsion invariant of 3-manifolds. We give several gluing formulas from which we derive two consequences. The first is an understanding of how the components of the invariant change when we remove a curve from the …

2016-02-02abs ↗pdf ↗

New indefinite false theta functions match homological blocks for a specific 3-manifold.

problem Constructing homological blocks for certain 3-manifolds.
method Developing indefinite false theta functions and proving their equivalence to homological blocks.
result Indefinite false theta functions match homological blocks for the Poincaré homology sphere.

A virtual nn-string is a chord diagram with nn core circles and a collection of arrows between core circles. We consider virtual nn-strings up to virtual homotopy, compositions of flat virtual Reidemeister moves on chord diagrams. Given a virtual 1-string αα, Turaev associated a based matrix that encodes invariants…

2017-09-02abs ↗pdf ↗

We consider certain invariants of links in 3-manifolds, obtained by a specialization of the Turaev-Viro invariants of 3-manifolds, that we call colored Turaev-Viro invariants. Their construction is based on a presentation of a pair (M,L), where M is a closed oriented 3-manifold and L is an oriented link in M, by a tria…

2008-01-10abs ↗pdf ↗

We construct modular categories from Hecke algebras at roots of unity. For a special choice of the framing parameter, we recover the Reshetikhin-Turaev invariants of closed 3-manifolds constructed from the quantum groups U_q sl(N) by Reshetikhin-Turaev and Turaev-Wenzl, and from skein theory by Yokota. We then discuss …

1998-03-24abs ↗pdf ↗

This paper generalizes two facts about oriented 3d TFTs to the unoriented case. On one hand, it is known that oriented 3d TFTs having a topological boundary condition admit a state-sum construction known as the Turaev-Viro construction. This is related to the string-net construction of fermionic phases of matter. We sh…

2016-11-08abs ↗pdf ↗

New model for Witten-Reshetikhin-Turaev invariants using Lagrangian intersections.

problem Categorification of Witten-Reshetikhin-Turaev invariants for 3-manifolds.
method Constructing a topological model from quantum group U_q(sl(2)) using Lagrangian intersections in configuration spaces.
result Witten-Reshetikhin-Turaev invariants are encoded by intersections of Lagrangian submanifolds in a fixed configuration space.

We establish a relation between the "large r" asymptotics of the Turaev-Viro invariants TVrTV_r and the Gromov norm of 3-manifolds. We show that for any orientable, compact 3-manifold MM, with (possibly empty) toroidal boundary, logTVr(M)\log |TV_r (M)| is bounded above by a function linear in rr and whose slope is a positiv…

2017-05-28abs ↗pdf ↗

We construct an infinite family of hyperbolic, homologically thin knots that are not quasi-alternating. To establish the latter, we argue that the branched double-cover of each knot in the family does not bound a negative definite 4-manifold with trivial first homology and bounded second betti number. This fact depends…

2011-06-28abs ↗pdf ↗

In this paper we construct the Differential calculus on the Hopf Group Coalgebra introduced by Turaev [10]. We proved that the concepts introduced by S.L.Woronowicz in constructing Differential calculus on Hopf Compact Matrix Pseudogroups (Quantum Groups)[7] can be adapted to serve again in our construction.

2005-07-25abs ↗pdf ↗

The Turaev genus of a link can be thought of as a way of measuring how non-alternating a link is. A link is Turaev genus zero if and only if it is alternating, and in this viewpoint, links with large Turaev genus are very non-alternating. In this paper, we study Turaev genus one links, a class of links which includes a…

2018-12-29abs ↗pdf ↗

By applying a variant of the TQFT constructed by Blanchet, Habegger, Masbaum, and Vogel, and using a construction of Ohtsuki, we define a module endomorphism for each knot K by using a tangle obtained from a surgery presentation of K. We show that it is strong shift equivalent to the Turaev-Viro endomorphism associated…

2012-02-08abs ↗pdf ↗

The Turaev genus defines a natural filtration on knots where Turaev genus zero knots are precisely the alternating knots. We show that the signature of a Turaev genus one knot is determined by the number of components in its all-A Kauffman state, the number of positive crossings, and its determinant. We also show that …

2016-04-12abs ↗pdf ↗

Study shows concordance invariants bound Turaev genus.

problem Understanding the Turaev genus of knots.
method Using differences between concordance invariants, including Rasmussen's ss-invariant and sns_n-invariants.
result Established lower bounds for Turaev genus and provided examples of quasi-alternating knots with specific genus values.

Study how Turaev-Viro invariants change with cabling operations.

problem Understanding how Turaev-Viro invariants vary with cabling operations.
method Utilized the invertibility of a linear operator associated with torus knot cable spaces in Reshetikhin-Turaev SO3 TQFT.
result Showed the Chen-Yang volume conjecture is stable under (p,q)-cabling for coprime p and q.