Wei Jiang

collaborators

2 papers

math.CO2026

Real stability of layer-refined antichain polynomials for three-chain products with a two-element factor

Weiqi Jiang

For all positive integers $n, k$ , we prove that the layer-refined antichain polynomial of the product poset $[2] \times [n] \times [k]$ is real stable. Jacobi-polynomial interlacing fur…

math.CO2026

Type-Voltage Covers and Finite Locally Kneser Graphs

Weiqi Jiang

For every $d \geq 3$ we construct a connected graph of order $2 (d 3 d + 1)$ that is locally $K (2 d + 1, d)$ . Fix a block $A$ and put $a^{'} = min (∣ A ∣, 3 d + 1 - ∣ A ∣)$ . Among the loopless binar…