Di Yang

collaborators

3 papers

math-ph2025

On enumeration of $l$ -hypermaps

Zhengfei Huang, Di Yang

The $l$ -hypermaps, $l \geq 2$ , which generalize (dual of) ribbon graphs ( $l = 2$ case), are interesting enumerative objects. In this paper, based on a theorem of Carlet--van de Leur--Po…

math.OA2025

Maximality and symmetry related to the $2$-adic ring $C^*$-algebra

Dolapo Oyetunbi, Dilian Yang

The 2-adic ring $C^{*}$ -algebra $Q_{2}$ is the universal $C^{*}$ -algebra generated by a unitary and an isometry satisfying certain relations. It contains a canonical copy of th…

math-ph2025

On Gromov--Witten invariants of $P^{1}$ -orbifolds and topological difference equations

Zhengfei Huang, Di Yang

Let $(m_{1}, m_{2})$ be a pair of positive integers. Denote by $P^{1}$ the complex projective line, and by $P_{m_{1}, m_{2}}^{1}$ the orbifold complex projective line obtained…

On enumeration of l-hypermaps

Maximality and symmetry related to the \(2\)-adic ring \(C^*\)-algebra

On Gromov--Witten invariants of P1-orbifolds and topological difference equations

On enumeration of $l$ -hypermaps

On Gromov--Witten invariants of $P^{1}$ -orbifolds and topological difference equations