Dimensions of spline spaces over non-rectangular T-meshes

作者:Zeng, Chao; Wu, Meng; Deng, Fang; Deng, Jiansong*
来源:Advances in Computational Mathematics, 2016, 42(6): 1259-1286.
DOI:10.1007/s10444-016-9461-4

摘要

Spline spaces over rectangular T-meshes have been discussed in many papers. In this paper, we consider spline spaces over non-rectangular T-meshes. The dimension formulae of spline spaces over special simply connected T-meshes have been obtained. For T-meshes with holes, we discover a new type of dimension instability. We construct a relationship between the dimension of the spline space over a T-mesh with holes and the dimension of the spline space over a simply connected T-mesh associated with .