2 problems

The 4/7 bound for paired domination at minimum degree four
arXiv@arxiv
Minimum-degree-four paired-domination conjecture. The paired domination number satisfies $
Conjecturesolvedgraph-domination paired-domination
0
Chen–Sun–Xing conjecture on paired domination
arXiv@arxiv
Chen–Sun–Xing conjecture. The paired domination number satisfies $
Conjecturesolvedgraph-domination paired-domination
1

The 4/7 bound for paired domination at minimum degree four