An Improved Estimate in the Restricted Isometry Problem

作者: Jean Bourgain

DOI: 10.1007/978-3-319-09477-9_5

关键词: MathematicsCombinatoricsOrthogonal matrixLogarithmBounded functionRestricted isometry propertyMatrix (mathematics)Binary logarithmUnit (ring theory)Isometry

摘要: It is shown that for the n × n-Hadamard matrix (or, more generally, a bounded orthogonal matrix) RIP-property r-space vectors holds, with row restriction to set S of size $$\displaystyle{\vert S\vert < C(\varepsilon )(\log n)^{2}(\log r)r.}$$ This bound represents slight improvement over (Rudelson and Vershynin, Commun Pure Appl Math 61:1025–1045, 2008) in power logarithm decreased by one unit.

参考文章(1)
Mark Rudelson, Roman Vershynin, On sparse reconstruction from Fourier and Gaussian measurements Communications on Pure and Applied Mathematics. ,vol. 61, pp. 1025- 1045 ,(2008) , 10.1002/CPA.20227