Hung T. Dang

most citedComputationally Predicted Electronic Properties and Energetics of Native Defects in Cubic Boron Nitride

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math.NT2026

The Richelot isogeny graph and paramodular forms of weight 3: Atkin-Lehner signs and certified spectra

Hung T. Dang

The Richelot $(2, 2)$ -isogeny graph $G_{p}$ of superspecial abelian surfaces in characteristic $p$ is the genus-2 analogue of the supersingular isogeny graph: its weighted adjacency m…

math.NT2026

Exact Stratification and Affine Mass Formulas for Split Richelot Data over Finite Fields

Hung T. Dang, Diep V. Nguyen

The Richelot $(2, 2)$ -step is the standard step of explicit genus-2 isogeny computation. We determine the exact stratification of its input space over a finite field $F_{q}$ …