activity
20232026
collaborators

7 papers

math.GT2026

A relation between the Baseilhac-Benedetti and the Bonahon-Liu-Wong-Yang invariants

Stavros Garoufalidis, Tao Yu

Baseilhac-Benedetti, following ideas of Kashaev, introduced invariants of pseudo-Anosov homeomorphisms of punctured hyperbolic surfaces that depend on a complex root of unity of od…

math.GT2025

On the Bonahon--Wong--Yang invariants of pseudo-Anosov maps

Stavros Garoufalidis, Tao Yu

We conjecture (and prove for once-punctured torus bundles) that the Bonahon--Wong--Yang invariants of pseudo-Anosov homeomorphisms of a punctured surface at roots of unity coincide…

math.GT2024

The 3d-index of the 3d-skein module via the quantum trace map

Stavros Garoufalidis, Tao Yu

We define a map from the skein module of a cusped hyperbolic 3-manifold to the ring of Laurent series in one variable with integer coefficients that satisfies two properties: its e…

math.GT2024

A Quantum trace map for 3-manifolds

Stavros Garoufalidis, Tao Yu

We define a quantum trace map from the skein module of a 3-manifold with torus boundary components to a module (left and right quotient of a quantum torus) constructed from an idea…

math.QA2023

Explicit representations and Azumaya loci of skein algebras of small surfaces

Tao Yu

We construct finite dimensional representations of the Kauffman bracket skein algebra of the one-punctured torus and four-punctured sphere at all roots of unity. The representation…

math.QA2023

Center of the stated skein algebra

Tao Yu

The stated skein algebra is a generalization of the Kauffman bracket skein algebra introduced in the study of quantum trace maps. When the quantum parameter is a root of unity, the…

math.DG2023

Left-invariant Ricci collineations associated to Yano connections on three-dimensional Lorentzian Lie groups

Tao Yu

In this paper, we classify Left-invariant Ricci collineations associated to Yano connections on three-dimensional Lorentzian Lie groups.