Pierre Youssef

activity

20122026

most citedThe dimension-free structure of nonhomogeneous random matrices

48 citations · 137 across the 28 of their papers we have counts for

collaborators

Showing 2014Show all

2 papers · 1 filter

math.PR2014

When does a discrete-time random walk in $R^{n}$ absorb the origin into its convex hull?

Konstantin Tikhomirov, Pierre Youssef

We connect this question to a problem of estimating the probability that the image of certain random matrices does not intersect with a subset of the unit sphere $S^{n - 1}$ …

math.FA2014

Extracting a basis with fixed block inside a matrix

Pierre Youssef

Given $U$ an $n \times m$ matrix of rank $n$ and $V$ block of columns inside $U$ , we consider the problem of extracting a block of columns of rank $n$ which minimize the Hilbert-Sch…

When does a discrete-time random walk in Rn absorb the origin into its convex hull?

Extracting a basis with fixed block inside a matrix

When does a discrete-time random walk in $R^{n}$ absorb the origin into its convex hull?