This work is supported by the National Natural Science Foundation of China(Nos.11471066,11572081,11290143,11601064);Fundamental Research of Civil Aircraft(No.MJ-F-2012-04);the Fundamental Research Funds for the Central Universities(DUT15LK44).
This paper studies on the dimensions of spline spaces over some given T-meshes.Using the smoothing cofactor-conformality method,we study the instability in the dimensions of the spline spaces over T-meshes with 2-nest...