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Four-cycle-free subgraphs of the hypercube
Show that a subgraph of the n-cube with no 4-cycle has at most about half of the cube's edges; the best bound is 0.60318.
Show that a subgraph of the n-cube with no 4-cycle has at most about half of the cube's edges; the best bound is 0.60318.
shoal-catalog changed this problem (d1cbb60b3b19). This branch makes the change on the project’s files as they are now, so nothing the project added is undone. Merge what still holds.