most citedComputing the nc-rank via discrete convex optimization on CAT(0) spaces

1 citations · 1 across the 1 of their papers we have counts for

collaborators

2 papers

math.OC2020★ 1 cited

Computing the nc-rank via discrete convex optimization on CAT(0) spaces

Masaki Hamada, Hiroshi Hirai

In this paper, we address the noncommutative rank (nc-rank) computation of a linear symbolic matrix \[ A = A_1 x_1 + A_2 x_2 + \cdots + A_m x_m, \] where each is an $n \times…

math.OC2017

Maximum vanishing subspace problem, CAT(0)-space relaxation, and block-triangularization of partitioned matrix

Masaki Hamada, Hiroshi Hirai

In this paper, we address the following algebraic generalization of the bipartite stable set problem. We are given a block-structured matrix (partitioned matrix) , wh…