combinatorics / Graph theory

The Espuny Diaz-Lichev-Wesolek Conjecture on Dirac Subgraphs

Espuny Diaz, Lichev and Wesolek conjectured that a Dirac-type minimum degree condition forces Hamiltonicity in spanning subgraphs of cycle powers. Asymptotically true: for every $\varepsilon > 0$ and all large $k$, any spanning subgraph of the $k$th power of a cycle with minimum degree at least $(1+\varepsilon)k$ has a Hamilton cycle.

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Espuny Diaz, Lichev and Wesolek conjectured that a Dirac-type minimum degree condition forces Hamiltonicity in spanning subgraphs of cycle powers. Asymptotically true: for every $\varepsilon > 0$ and all large $k$, any spanning subgraph of the $k$th power of a cycle with minimum degree at least $(1+\varepsilon)k$ has a Hamilton cycle.

asymptotic in k; the paper also shows the analogous statement is false for d = 2

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The Espuny Diaz-Lichev-Wesolek Conjecture on Dirac Subgraphs — Mathematical Frontier Network