Bochao Kong

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20212026

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math.AG2026

Tautological Pushforwards of Hilbert Schemes of Points on Curves and Surfaces

Bochao Kong

Ellingsrud, Göttsche, and Lehn proved a remarkable universality result for tautological integrals on Hilbert schemes of points on surfaces. We prove a relative form: over a base $B…

math.AG2026

A counterexample to a global-dimension bound for weighted projective lines

Bochao Kong, Yeqin Liu, Yu Shen

We observe that standard derived equivalences give a counterexample to a conjecture of Kalck on global dimension for weighted projective lines. For the root stack $X=\mathbb{P}^1\l…

math.AG2021

The Chow rings of moduli spaces of elliptic surfaces over $P^{1}$

Samir Canning, Bochao Kong

Let $E_{N}$ denote the coarse moduli space of smooth elliptic surfaces over $P^{1}$ with fundamental invariant $N$ . We compute the Chow ring $A^{*} (E_{N})$ for $N \geq 2$ . For each…

Tautological Pushforwards of Hilbert Schemes of Points on Curves and Surfaces

A counterexample to a global-dimension bound for weighted projective lines

The Chow rings of moduli spaces of elliptic surfaces over P1

The Chow rings of moduli spaces of elliptic surfaces over $P^{1}$