3 papers
math.NA2026
Lightning Plus Polynomial Approximation: Optimal Root-Exponential Convergence for Singular Functions in Corner Domains
Shuhuang Xiang, Jun Xiang, Shunfeng Yang +1
This paper presents a rigorous convergence analysis for the lightning plus polynomial approximation scheme, which employs rational approximations constructed with preassigned taper…
math.CA2025
Construction of a curved Kakeya set
Tongou Yang, Yue Zhong
We construct a compact set in of measure 0 containing a piece of a parabola of every aperture between 1 and 2. As a consequence, we improve lower bounds for the …
math.CA2025
Improved packing of hypersurfaces in
Xianghong Chen, Tongou Yang, Yue Zhong
For , we construct a compact subset containing a -sphere of every radius between and , such that for every , the -…