I'm currently writing a text in which I have some object called a graph
, which has the attribute of being planar
in a special way, namely in the multi-level
way. I'm pretty certain that I should call this a multi-level-planar graph
. Calling it a multi-level planar graph
would introduce the ambiguity whether the graph is multi-level
and planar
, or whether it is, well, multi-level-planar
.
Now the confusion starts. What if I want to write
The graph is multi-level-planar.
Is the last hyphen correct here? Saying the graph is multi-level planar
would not open up any ambiguity (that I could see). However, it feels like this is inconsistent.
The second confusion is this: I have some techique that tests a graph
for whether it is multi-level-planar
. Do I call this
multi-level-planarity testing
or
multi-level planarity testing
In the first case I now suddenly have a hyphen between a (compound) adjective and a noun - is that allowed? The second case again is ambiguous: Is the testing or the planarity multi-level
?
Thanks for any help!