摘要
is not completely clear which elements constitute the frame sets of the B-splines currently,but some considerable results have been obtained.In this paper,firstly,the background of frame set is introduced.Secondly,the main progress of the frame sets of the B-splines in the past more than twenty years are reviewed,and particularly the progress for the frame set of the 2 order Bspline and the frame set of the 3 order B-spline are explained,respectively.
基金
supported in part by the National Natural Science Foundation of China(Grant No.61471410).
