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cs.DM2026
Factorisability of Low Dimensional Non-Negative Integer Matrices
Paul C. Bell, Eva Foster, Daniel Reidenbach +1
We consider the problem of determining if a given two-dimensional nonnegative integer matrix is the product of two such matrices, excluding trivial units. A matrix with no…
cs.FL2026
On Word Representations and Embeddings in Complex Matrices
Paul C. Bell, George Kenison, Reino Niskanen +2
Embeddings of word structures into matrix semigroups provide a natural bridge between combinatorics on words and linear algebra. However, low-dimensional matrix semigroups impose s…