2 papers
math.CO2026
Punctured adjacency-degree algebras of Cartesian products
Zhipeng Lu
For a connected regular graph G and a vertex a, we study the algebra generated by the adjacency and degree matrices of G-a and its cyclic module P_a generated by the all-ones vecto…
math.CO2026
A dot-product bound from separate growth-minimizing bases
Zhipeng Lu
For every finite we prove , with an absolute constant and no logarithmic loss, where . This i…