3 problems

Let $P_{8,31}$, $P_{8,35}$, $P_{8,30}$, and $P_{8,36}$ denote the named graphs in the paper, and let $P_{i,j}$ denote the corresponding graph period. Equal-period conjectures. The…

Let a $\phi^4$ graph be a graph in the class considered in the paper, and let its period and extended graph permanent be the associated graph invariants. Period–extended graph perm…

Let a 4-point $\phi^4$ graph be a graph of the type considered in the paper, with period and extended graph permanent as defined there. Period–extended graph permanent conjecture.…