Quantum Invariants of Ribbon Surfaces in $4$-Dimensional $2$-Handlebodies

Fuente: arXiv
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Main Authors: Beliakova, Anna, De Renzi, Marco, Faes, Quentin
Format: Preprint
Published: 2025
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author Beliakova, Anna
De Renzi, Marco
Faes, Quentin
author_facet Beliakova, Anna
De Renzi, Marco
Faes, Quentin
contents We use unimodular ribbon categories to construct quantum invariants of ribbon surfaces in $4$-dimensional $2$-handlebodies up to $1$-isotopy. In the process, we recover invariants due to Bobtcheva-Messia, Broda-Petit, Gainutdinov-Geer-Patureau-Runkel (in collaboration with the second author), and Lee-Yetter. Our approach does not assume semisimplicity, and is based on a generalization of the Reshetikhin-Turaev functor to the category of labeled Kirby graphs which also yields invariants of framed links in the boundary of $4$-dimensional $2$-handlebodies up to $2$-deformations. The setup is very flexible, and allows for several different constructions, using central elements satisfying equations introduced by Hennings and Bobtcheva-Messia, modified traces, and modules over Frobenius algebras satisfying conditions dictated by the diagrammatic calculus for embedded surfaces developed by Hughes, Kim, and Miller.
format Preprint
id arxiv_https___arxiv_org_abs_2512_15395
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Quantum Invariants of Ribbon Surfaces in $4$-Dimensional $2$-Handlebodies
Beliakova, Anna
De Renzi, Marco
Faes, Quentin
Geometric Topology
Quantum Algebra
We use unimodular ribbon categories to construct quantum invariants of ribbon surfaces in $4$-dimensional $2$-handlebodies up to $1$-isotopy. In the process, we recover invariants due to Bobtcheva-Messia, Broda-Petit, Gainutdinov-Geer-Patureau-Runkel (in collaboration with the second author), and Lee-Yetter. Our approach does not assume semisimplicity, and is based on a generalization of the Reshetikhin-Turaev functor to the category of labeled Kirby graphs which also yields invariants of framed links in the boundary of $4$-dimensional $2$-handlebodies up to $2$-deformations. The setup is very flexible, and allows for several different constructions, using central elements satisfying equations introduced by Hennings and Bobtcheva-Messia, modified traces, and modules over Frobenius algebras satisfying conditions dictated by the diagrammatic calculus for embedded surfaces developed by Hughes, Kim, and Miller.
title Quantum Invariants of Ribbon Surfaces in $4$-Dimensional $2$-Handlebodies
topic Geometric Topology
Quantum Algebra
url https://arxiv.org/abs/2512.15395