2 papers
math.NT2026
Lattice point counting in Cygan--Korányi balls on Heisenberg groups
Sheng-Chen Mao, Sibei Yang
Lattice point counting in gauge balls on the Heisenberg group is a non-commutative analogue of the Euclidean multidimensional sphere problem, initiated by Garg, Nevo…
math.AP2025
Equivalent Characterizations and Their Applications of Solvability of Poisson--Robin(-Regularity) Problems on Rough Domains
Xuelian Fu, Dachun Yang, Sibei Yang
Let , be a bounded one-sided chord arc domain, and . In this article, we study the (weak) Poisson--Robin(-regularity) problem f…