<正>In this paper, the totally non-positive matrix is introduced. The totally non-positive completion asks which partial totally non-positive matrices have a co
<正>In this paper,a new quasi-interpolation with radial basis functions which satis- fies quadratic polynomial reproduction is constructed on the infinite set o
We introduce multilevel augmentation methods for solving operator equations based on direct sum decompositions of the range space of the operator and the soluti