Random polytopes obtained by matrices with heavy-tailed entries

被引:4
作者
Guedon, O. [1 ]
Litvak, A. E. [2 ]
Tatarko, K. [2 ]
机构
[1] Univ Paris Est Marne la Vallee, Lab Anal Math Appl, 5 Blvd Descartes, F-77454 Marne La Vallee 2, France
[2] Univ Alberta, Dept Math & Stat Sci, Edmonton, AB T6G 2G1, Canada
关键词
Random polytopes; random matrices; heavy tails; smallest singular number; small ball probability; compressed sensing; l(1)-quotient property; SMALLEST SINGULAR-VALUE; GEOMETRY; SPACES; INVERTIBILITY; OPERATORS; NUMBERS; VERSION; VALUES;
D O I
10.1142/S0219199719500275
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Let Gamma be an N x n random matrix with independent entries and such that in each row entries are i.i.d. Assume also that the entries are symmetric, have unit variances, and satisfy a small ball probabilistic estimate uniformly. We investigate properties of the corresponding random polytope Gamma* B-1(N) in R-n (the absolute convex hull of rows of Gamma). In particular, we show that Gamma* B-1(N) superset of b(-1) (B-infinity(n) boolean AND root ln(N/n) B-2(n)), where b depends only on parameters in small ball inequality. This extends results of [A. E. Litvak, A. Pajor, M. Rudelson and N. Tomczak-Jaegermann, Smallest singular value of random matrices and geometry of random polytopes, Adv. Math. 195 (2005) 491-523] and recent results of [F. Krahmer, C. Kummerle and H. Rauhut, A quotient property for matrices with heavy-tailed entries and its application to noise-blind compressed sensing, preprint (2018); arXiv:1806.04261]. This inclusion is equivalent to socalled l(1)-quotient property and plays an important role in compressed sensing (see [F. Krahmer, C. Kummerle and H. Rauhut, A quotient property for matrices with heavy-tailed entries and its application to noise-blind compressed sensing, preprint (2018); arXiv:1806.04261] and references therein).
引用
收藏
页数:28
相关论文
共 32 条
[1]  
[Anonymous], 1989, Mathematics of the USSR-Sbornik, DOI 10.1070/SM1989v064n01ABEH003295
[2]   Poisson convergence for the largest eigenvalues of heavy tailed random matrices [J].
Auffinger, Antonio ;
Ben Arous, Gerard ;
Peche, Sandrine .
ANNALES DE L INSTITUT HENRI POINCARE-PROBABILITES ET STATISTIQUES, 2009, 45 (03) :589-610
[3]   On 0-1 polytopes with many facets [J].
Bárány, I ;
Pór, A .
ADVANCES IN MATHEMATICS, 2001, 161 (02) :209-228
[4]   APPROXIMATION OF THE SPHERE BY POLYTOPES HAVING FEW VERTICES [J].
BARANY, I ;
FUREDI, Z .
PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, 1988, 102 (03) :651-659
[5]   NEW VOLUME RATIO PROPERTIES FOR CONVEX SYMMETRICAL BODIES IN RN [J].
BOURGAIN, J ;
MILMAN, VD .
INVENTIONES MATHEMATICAE, 1987, 88 (02) :319-340
[6]   INVERTIBILITY OF LARGE SUBMATRICES WITH APPLICATIONS TO THE GEOMETRY OF BANACH-SPACES AND HARMONIC-ANALYSIS [J].
BOURGAIN, J ;
TZAFRIRI, L .
ISRAEL JOURNAL OF MATHEMATICS, 1987, 57 (02) :137-224
[7]   GELFAND NUMBERS OF OPERATORS WITH VALUES IN A HILBERT-SPACE [J].
CARL, B ;
PAJOR, A .
INVENTIONES MATHEMATICAE, 1988, 94 (03) :479-504
[8]   VOLUMES SPANNED BY RANDOM POINTS IN THE HYPERCUBE [J].
DYER, ME ;
FUREDI, Z ;
MCDIARMID, C .
RANDOM STRUCTURES & ALGORITHMS, 1992, 3 (01) :91-106
[9]   Random spaces generated by vertices of the cube [J].
Giannopoulos, A ;
Hartzoulaki, M .
DISCRETE & COMPUTATIONAL GEOMETRY, 2002, 28 (02) :255-273
[10]   DIAMETER OF THE MINKOWSKI COMPACTUM IS APPROXIMATELY EQUAL TO-N [J].
GLUSKIN, ED .
FUNCTIONAL ANALYSIS AND ITS APPLICATIONS, 1981, 15 (01) :57-58