70 citations · 226 across the 39 of their papers we have counts for
7 papers · 1 filter
A new approach to an old problem of Erdos and Moser
Hoi H. Nguyen
Let be iid Bernoulli random variables, taking values with probability 1/2. Given a multiset of elements of an additive group ,…
A characterization of incomplete sequences in
Hoi H. Nguyen, Van Vu
A sequence of elements an additive group is {\it incomplete} if there exists a group element that {\it can not} be expressed as a sum of elements from . The study of inc…
On the singularity of random combinatorial matrices
Hoi H. Nguyen
It is shown that a random matrix whose rows are independent random vectors of exactly zero components is non-singular with probability for any . Th…
Random matrices: Law of the determinant
Hoi H. Nguyen, Van Vu
Let be an by random matrix whose entries are independent real random variables with mean zero, variance one and with subexponential tail. We show that the logarithm o…
A continuous variant of the inverse Littlewood-Offord problem for quadratic forms
Hoi H. Nguyen
Motivated by the inverse Littlewood-Offord problem for linear forms, we study the concentration of quadratic forms. We show that if this form concentrates on a small ball with high…
On the least singular value of random symmetric matrices
Hoi H. Nguyen
Let be an by symmetric matrix whose entries are bounded by for some . Consider a randomly perturbed matrix , where is a random symmetric…