Jianghao Xu

activity

20202026

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math-ph2026

On enumeration of $b$ -angulations of surfaces from an integrability perspective

Elba Garcia-Failde, Jianghao Xu, Di Yang +1

In this paper, we study generating series enumerating polygonal angulations of closed oriented surfaces of fixed genus, focusing on $b$ -angulations with $b = 3$ or $b = 2 ν$ , $ν\geq…

math-ph2024

Galilean symmetry of the KdV hierarchy

Jianghao Xu, Di Yang

By solving the infinitesimal Galilean symmetry for the KdV hierarchy, we obtain an explicit expression for the corresponding one-parameter Lie group, which we call the Galilean sym…

On enumeration of b-angulations of surfaces from an integrability perspective

Galilean symmetry of the KdV hierarchy

On enumeration of $b$ -angulations of surfaces from an integrability perspective