orthonormal spline system;
periodic spline system;
unconditional basis;
GENERAL FRANKLIN SYSTEMS;
SPACES;
KNOTS;
D O I:
10.3103/S1068362324700183
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
We give a geometric characterization of knot sequences(s(n)), which is a necessary condition for the corresponding periodic orthonormal spline system of arbitrary order k,k is an element of N, to be an unconditional basis in the atomic Hardy space on the torus H-1(T).