Bello-Cruz
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Related Articles from SNS
On the sharp linear convergence rate of the circumcentered--reflection method on subspaces
arXiv:2606.07888v1 Announce Type: cross Abstract: For two subspaces $U,V\subseteq\RR^n$, the circumcentered--reflection method (CRM) of Behling, Bello-Cruz, and Santos~\cite{BBS2018} computes the projection onto $U\cap V$ using only the reflections across $U$ and $V$, with known linear-convergence rate $c_F$, the cosine of the Friedrichs angle. We prove that, when CRM is initialized in $V$, it contracts at the strictly smaller rate...