activity
20102026
most citedFormality and Kontsevich--Duflo type theorems for Lie pairs

13 citations · 45 across the 12 of their papers we have counts for

collaborators

12 papers

math.QA2026

Duflo--Kontsevich-type isomorphisms for Tamarkin--Tsygan calculi of dg manifolds

Hsuan-Yi Liao, Mathieu Stiénon, Ping Xu

We establish a Duflo--Kontsevich-type theorem for differential graded (dg) manifolds. Specifically, we prove that the Hochschild--Kostant--Rosenberg maps twisted by the square root…

math.DG2025

Formal geometry and Tamarkin--Tsygan calculi of dg manifolds

Hsuan-Yi Liao, Mathieu Stiénon, Ping Xu

The main goal of this paper is to study the formal geometry of dg manifolds à la Fedosov. For any dg manifold , we construct a Fedosov dg foliation (or dg Lie alg…

math.DG2023

Vertical isomorphisms of Fedosov dg manifolds associated with a Lie pair

Hua-Shin Chang, Hsuan-Yi Liao

We investigate vertical isomorphisms of Fedosov dg manifolds associated with a Lie pair , i.e. a pair of a Lie algebroid and a Lie subalgebroid of . The construct…

math.DG2023

Differential graded manifolds of finite positive amplitude

Kai Behrend, Hsuan-Yi Liao, Ping Xu

We prove that dg manifolds of finite positive amplitude, i.e. bundles of positively graded curved -algebras, form a category of fibrant objects. As a main step in the…

math.DG2023

On the structure of étale fibrations of -bundles

Kai Behrend, Hsuan-Yi Liao, Ping Xu

We prove that an étale fibration between -bundles admits local sections composed of several elementary morphisms of particularly simple and accessible type. As applicatio…

math.DG2022★ 4 cited

Atiyah classes and Todd classes of pullback dg Lie algebroids associated with Lie pairs

Hsuan-Yi Liao

For a Lie algebroid and a Lie subalgebroid , i.e. a Lie pair , we study the Atiyah class and the Todd class of the pullback dg (i.e. differential graded) Lie algebroi…

math.QA2021★ 3 cited

Keller admissible triples and Duflo theorem

Hsuan-Yi Liao, Seokbong Seol

The present paper is devoted to the study of Keller admissible triples. We prove that a Keller admissible triple induces an isomorphism of Gerstenhaber algebras between the Hochsch…

math.DG2020★ 5 cited

Derived Differentiable Manifolds

Kai Behrend, Hsuan-Yi Liao, Ping Xu

We develop the theory of derived differential geometry in terms of bundles of curved -algebras, i.e. dg manifolds of positive amplitudes. We prove the category of deri…

math.DG2017★ 11 cited

Formality for g-manifolds

Hsuan-Yi Liao, Mathieu Stiénon, Ping Xu

To any -manifold are associated two dglas and $\ope…

math.QA2016★ 13 cited

Formality and Kontsevich--Duflo type theorems for Lie pairs

Hsuan-Yi Liao, Mathieu Stiénon, Ping Xu

$\newcommand{\poly}{_{\operatorname{poly}}^{\bullet}}\newcommand{\td}{(\operatorname{td}_{L/A}^{\nabla})^{\frac{1}{2}}}\newcommand{\cx}[1]{\operatorname{tot}\big(Γ(Λ^\bullet A^\vee…

math.DG2015★ 9 cited

Formal exponential map for graded manifolds

Hsuan-Yi Liao, Mathieu Stiénon

We introduce, for every -graded manifold, a formal exponential map defined in a purely algebraic way and study its properties. As an application, we give a simple new c…

math.GR2010

Semi-topological Galois theory and the inverse Galois problem

Hsuan-Yi Liao, Jyh-Haur Teh

We enhance the analogy between field extensions and covering spaces by introducing the concept of splitting covering which correspondences to the splitting field in Galois theory.…