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Weak isolation conjecture for regular partial Hadamard matrices
Let $H\in M_{M\times N}(\mathbb C)$ be a dephased partial Hadamard matrix. It is regular when its row scalar products decompose as sums of cycles, isolated when it has only trivial…
Conjectureopenbutson-matrices hadamard-matrices matrix-isolationarXiv posted 3 days ago

Weak isolation conjecture for regular partial Hadamard matrices