Benoît Collins

collaborators

2 papers

math.PR2026

A Sudakov--Fernique proof of Lehner-type edge bounds for matrix-valued GUE sums

Benoit Collins, Yuta Yamagishi

Let $A_{0}, A_{1}, \dots, A_{n} \in M_{N} (C)$ be Hermitian matrices and let $G_{1}, \dots, G_{n}$ be independent $M \times M$ GUE matrices normalized so that $∥ M^{- 1/2} G_{i} ∥ \to 2$ almost…

math.OA2026

Operator Norm Bounds for Multi-leg Matrix Tensors and Applications to Random Matrix Theory

BenoÃ®t Collins, Wangjun Yuan

We investigate the extremal values of partial traces of matrix tensors under operator norm constraints. To evaluate these multi-linear quantities, we develop a comprehensive graphi…