337 citations · 1.3k across the 45 of their papers we have counts for
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math-ph2019★ 10 cited
Revisiting Horn's Problem
Robert Coquereaux, Colin McSwiggen, Jean-Bernard Zuber
We review recent progress on Horn's problem, which asks for a description of the possible eigenspectra of the sum of two matrices with known eigenvalues. After revisiting the class…
math-ph2019★ 21 cited
On Horn's Problem and its Volume Function
Robert Coquereaux, Colin McSwiggen, Jean-Bernard Zuber
We consider an extended version of Horn's problem: given two orbits and of a linear representation of a compact Lie group, let ,…