2 papers
math.NA2025
Novel superconvergence and ultraconvergence structures for the finite volume element method
Xiang Wang, Yuqing Zhang, Zhimin Zhang
This paper develops novel natural superconvergence and ultraconvergence structures for the bi--order finite volume element (FVE) method on rectangular meshes. These structures f…
cs.CV2025
Color Image Set Recognition Based on Quaternionic Grassmannians
Xiang Xiang Wang, Tin-Yau Tam
We propose a new method for recognizing color image sets using quaternionic Grassmannians, which use the power of quaternions to capture color information and represent each color…