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math.OC2026
Accelerating operator Sinkhorn iteration with overrelaxation
Tasuku Soma, André Uschmajew
We propose accelerated versions of the operator Sinkhorn iteration for operator scaling using successive overrelaxation. We analyze the local convergence rates of these accelerated…
math.OC2026
The tangent cone to the real determinantal variety: various expressions and a proof
Guillaume Olikier, Petar MlinariÄ, P. -A. Absil +1
The set of real matrices of upper-bounded rank is a real algebraic variety called the real generic determinantal variety. An explicit description of the tangent cone to that variet…