4 papers
math.CA2026
Weighted mixed-norm estimates for circular averages and exceptional set estimates for the wave equation
Yixuan Pang, Chenjian Wang
We prove mixed-norm estimates for circular averages with respect to -dimensional fractal measures on , using circle tangency bounds when and a -…
math.CO2025
Pinned patterns and density theorems in
Chenjian Wang
For integers we consider the abundance property of pinned -point patterns occurring in with positive upper density . We show t…
math.CA2025
A note on maximal operators for moment curves
Chenjian Wang
We consider a type of maximal operators associated to moment curves in We derive mapping properties for these operators. In a special case, the estima…
math.CA2025
Pinned distances and density theorems in
Chenjian Wang
We study a pinned variant of Bourgain's theorem, concerning the occurrence of affine copies of -point patterns in . Focusing on the case , which corresponds t…