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1. Isotropy groups of the action of orthogonal similarity on symmetric matrices Tadej Starčič, 2023, original scientific article Keywords: isotropy groups, matrix equations, orthogonal matrices, symmetric matrices, Toeplitz matrices |
2. Symmetric nonnegative matrix trifactorization Damjana Kokol-Bukovšek, Helena Šmigoc, 2023, original scientific article Keywords: mathematics, mathematical economy, matrix algebra, nonnegative matrix factorization, completely positive matrices, nonnegative symmetric matrices, nonnegative rank |