Abstract
We present an approach that allows one to bound the largest and smallest singular values of an N×n random matrix with iid rows, distributed according to a measure on Rn that is supported in a relatively small ball and for which linear functionals are uniformly bounded in Lp for some p > 8, in a quantitative (non-asymptotic) fashion. Among the outcomes of this approach are optimal estimates of 1 ± c√n=N not only in the case of the above mentioned measure, but also when the measure is log-concave or when it is a product measure of iid random variables with "heavy tails".
Original language | English |
---|---|
Pages (from-to) | 823-834 |
Number of pages | 12 |
Journal | Journal of the European Mathematical Society |
Volume | 16 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2014 |
Externally published | Yes |