Chenchang Zhu

activity

20242026

L_{\infty}

groupoids

1 citations · 1 across the 2 of their papers we have counts for

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math.DG2026★ 1 cited

Differentiating $L_{\infty}$ groupoids

Du Li, Leonid Ryvkin, Arne Wessel +1

Differentiating an Lie $n$ -groupoid via the differential-geometric fat point a priori only yielads a presheaf of graded manifolds. In this article we prove that this presheaf is re…

math.DG2025

Duals of Higher Vector Spaces

Stefano Ronchi, Chenchang Zhu

We introduce a notion of `` $n$ -dual'' to a simplicial vector space for $n \geq 0$ . Coming with it, there is a canonical pairing, which we show to be non-degenerate up to homotopy for…

math.DG2025

Integrating Lie algebroids via stacks and applications to Jacobi manifolds

Chenchang Zhu

Lie algebroids can not always be integrated into Lie groupoids. We introduce a new object--``Weinstein groupoid'', which is a differentiable stack with groupoid-like axioms. With i…

math.DG2024

n-Groupoids and Stacky Groupoids

Chenchang Zhu

We discuss two generalizations of Lie groupoids. One consists of Lie $n$ -groupoids defined as simplicial manifolds with trivial $I ¨ _{k \geq n + 1}$ . The other consists of stacky Lie g…

Differentiating L∞​ groupoids

Duals of Higher Vector Spaces

Integrating Lie algebroids via stacks and applications to Jacobi manifolds

n-Groupoids and Stacky Groupoids

Differentiating $L_{\infty}$ groupoids