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Cambridge University Press

2 Pith papers cite this work. Polarity classification is still indexing.

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An algebraic characterization of non-singular matrix semicircles

math.OA · 2026-04-25 · unverdicted · novelty 7.0

Non-singularity of matrix semicircles at zero is equivalent to LR-semisimplicity of the pencil and symmetric DS-scalability of the covariance map, with f(0) equal to one over pi times the trace of the trace-minimizing positive solution C.

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