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Breaking Symmetries with Involutions
Michael Codish, Mikol\'a\v{s} Janota
https://arxiv.org/abs/2506.02903 https://arxiv.org/pdf/…

Breaking Symmetries with Involutions
Symmetry breaking for graphs and other combinatorial objects is notoriously hard. On the one hand, complete symmetry breaks are exponential in size. On the other hand, current, state-of-the-art, partial symmetry breaks are often considered too weak to be of practical use. Recently, the concept of graph patterns has been introduced and provides a concise representation for (large) sets of non-canonical graphs, i.e.\ graphs that are not lex-leaders and can be excluded from search. In particular…

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