Tong Zhang

collaborators

3 papers

math.AG2026

Stable Degenerations of log Fano Fibration Germs

Jiyuan Han, Minghao Miao, Lu Qi +2

We prove the stable degeneration conjecture of log Fano fibration germs formulated by Sun-Zhang. Precisely, we introduce the $H$ -invariant for filtrations over a log Fano…

math.AG2024

Moduli spaces of threefolds on the Noether line

Stephen Coughlan, Yong Hu, Roberto Pignatelli +1

In this paper, we study the moduli spaces of canonical threefolds with any prescribed geometric genus $p_{g} \geq 5$ which have the smallest possible canonical volume. This minimal vo…

math.AG2024

Noether inequality for irregular threefolds of general type

Yong Hu, Tong Zhang

Let $X$ be a smooth irregular $3$ -fold of general type over $C$ . We prove that the optimal Noether inequality $vol (X) \geq \frac{4}{3} p_{g} (X)$ holds if $p_g(X)…