2 problems

Erdős–Faudree–Győri size-condition conjecture.

Let $x\in\mathbb{Q}$ satisfy $\frac12<x<1$, and let … be its unique greedy representation, where $3\leq r_1$ and $(r_{i-1}-1)^2<r_i$ for $2\leq i\leq k$. Set … For a graph, its boo…