2 papers
math.AC2026
A five-variable counterexample to the Hessian conjecture, and the low-dimensional status of the Jacobian and Hessian conjectures
Guowu Meng, Liang Yang
We exhibit an explicit integer polynomial in five variables, of total degree and with constant Hessian determinant , whose gradient is not injective. Consequently its for…
math.RT2026
On higher extensions of quiver representations over
Changjian Fu, Liang Yang, Zhiyuan Zeng
We show that higher extension spaces between finite-dimensional nilpotent -representations maybe infinite-dimensional, thereby clarifying a misconception in the liter…