Does anyone know of any algorithms that exist which can explicitly compute a maximal isotropic subspace of a diagonal quadratic form over the rationals? I have been searching through the literature, but have been unable to find one. If so, could someone provide a reference for me? And if it is in fact quite trivial to do, would anyone be able to provide a quick summary? Thank you very much!
2026-03-25 08:05:34.1774425934
Algorithm for the maximal isotropic subspace
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