2 problems

Matching

The 1-2-3 Conjecture for sum-proper edge-labellings
About 5 years old
The 1-2-3 Conjecture. If $G$ is a nice graph, then
claimed solvedgraph-colourings graph-labellings
011
The multiplicative 1-2-3 Conjecture for multiset-proper edge-labellings
About 5 years old
The multiplicative 1-2-3 Conjecture for multisets. If $G$ is a nice graph, then
opengraph-colourings graph-labellings
011

The 1-2-3 Conjecture for sum-proper edge-labellings