Tengren Zhang

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math.DG2026

Geometric finiteness in paracomplex hyperbolic spaces

Tianqi Wang, Zhufeng Yao, Tengren Zhang

We develop a framework for studying discrete subgroups of $PGL (d + 1, R)$ via the paracomplex hyperbolic space $H_{τ}^{d}$ , a rank- $1$ pseudo-Riemannian symmetr…

math.DG2023

Cusped Borel Anosov representations with positivity

Tengren Zhang, Gye-Seon Lee

We show that if a cusped Borel Anosov representation from a lattice $Γ \subset PGL_{2} (R)$ to $PGL_{d} (R)$ contains a unipotent element with a single…