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math.QA2025
Group Invariant Quantum Latin Squares
Arnbjörg Soffía Árnadóttir, David E. Roberson
A quantum Latin square is an array of unit vectors where each row and column forms an orthonormal basis of a fixed complex vector space. We introduce the notion of $(G…
math.QA2024
Quantum Sabidussi's Theorem
Arnbjörg Soffía Árnadóttir, Josse van Dobben de Bruyn, Prem Nigam Kar +2
Sabidussi's theorem [Duke Math. J. 28, 1961] gives necessary and sufficient conditions under which the automorphism group of a lexicographic product of two graphs is a wreath produ…