Zihao Zhang

collaborators

3 papers

math.AP2025

Structural stability of supersonic spiral flows with large angular velocity for the Euler-Poisson system

Chunpeng Wang, Zihao Zhang

This paper concerns the structural stability of smooth cylindrically symmetric supersonic spiral flows with large angular velocity for the steady Euler-Poisson system in a concentr…

math.AP2023

Subsonic flows with a contact discontinuity in a finitely long axisymmetric cylinder

Shangkun Weng, Zihao Zhang

This paper concerns the structural stability of subsonic flows with a contact discontinuity in a finitely long axisymmetric cylinder. We establish the existence and uniqueness of a…

math.CO2021

Proof of a Conjecture on Hankel Determinants for Dyck Paths with Restricted Peak Heights

Guoce Xin, Zihao Zhang

For any integer $m \geq 2$ and $r \in {1, \dots, m}$ , let $f_{n}^{m, r}$ denote the number of $n$ -Dyck paths whose peak's heights are $im + r$ for some integer $i$ . We find the generati…