On the ℓ∞-norms of the singular vectors of arbitrary powers of a difference matrix with applications to sigma-delta quantization
On the ℓ∞-norms of the singular vectors of arbitrary powers of a difference matrix with applications to sigma-delta quantization
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关于差分矩阵任意次幂的奇异向量的-范数及其在 sigma-delta 量化中的应用
DOI:
10.1016/j.laa.2021.05.015
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发表时间:
2021
影响因子:
1.1
通讯作者:
Wang, Rongrong
中科院分区:
文献类型:
--
作者:
Faust, Theodore;Iwen, Mark;Saab, Rayan;Wang, Rongrong
Abstract Let‖ A‖ max:= max i, j| A i, j| denote the maximum magnitude of entries of a given matrix A. In this paper we show that max{‖ U r‖ max,‖ V r‖ max}≤(C r) 6 r N, where U r and V r are the matrices whose columns are, respectively, the left and right singular vectors of the r-th order finite difference matrix D r with r≥ 2, and where D is the N× N finite difference matrix with 1 on the diagonal,− 1 on the sub-diagonal, and 0 elsewhere. Here C is a universal constant that is independent of both N and r. Among other things, this establishes that both the right and left singular vectors of such finite difference matrices are Bounded Orthonormal Systems (BOSs) with known upper bounds on their BOS constants, objects of general interest in classical compressive sensing theory. Such finite difference matrices are also fundamental to standard r th order Sigma-Delta quantization schemes more specifically, and as a result the new bounds provided herein on the maximum ℓ∞-norms of their ℓ 2-normalized singular vectors allow for several previous Sigma-Delta quantization results to be generalized and improved.
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DOI:
--
发表时间:
1966-08
期刊:
--
影响因子:
--
作者:
L. Turner
通讯作者:
L. Turner
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
James Blum;M. Lammers;A. Powell;Ö. Yilmaz
通讯作者:
Ö. Yilmaz
影响因子:
1.2
作者:
M. Iwen;Rayan Saab
通讯作者:
Rayan Saab
影响因子:
1.1
作者:
A. Böttcher;S. Grudsky;E. Maksimenko
通讯作者:
E. Maksimenko
影响因子:
1.2
作者:
Rongrong Wang
通讯作者:
Rongrong Wang