arXiv:2611.01337v1 Announce Type: new Abstract: Sendrier's Support Splitting Algorithm (SSA) is the standard solver for the Permutation Equivalence Problem (PEP); its cost is dominated by a term that grows exponentially in the hull dimension. We study, mathematically, how much this cost can be lowered by replacing the standard inner product, on which the hull is defined, with an alternative bilinear form.
Bilinear Hulls for Support Splitting: Characterization, Optimization, and Applications
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