Kadison–Singer problem

Source placement record

Kadison–Singer problem (Adam Marcus, Daniel Spielman and Nikhil Srivastava, 2013) (and the Feichtinger's conjecture, Anderson's paving conjectures, Weaver's discrepancy theoretic K S r {\displaystyle KS_{r}} {\displaystyle KS_{r}} and K S r ′ {\displaystyle KS'_{r}} {\displaystyle KS'_{r}} conjectures, Bourgain-Tzafriri conjecture and R ε {\displaystyle R_{\varepsilon }} {\displaystyle R_{\varepsilon }}-conjecture)

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Source status: Solved since 1995
Field: Analysis
Record type: Revision-pinned source placement
Verification: Source-index reviewed
Source grade: secondary
Reviewed: 2026-07-27T18:04:33.834Z

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Source trail

Wikipedia list subsection — Exact Analysis subsection in the revision-pinned source.
Wikipedia topic article — Background article linked by the source index; follow its references for deeper study.
Pinned source revision 1366281547 — Revision-pinned snapshot from 7/27/2026.