The Robertson Diagram

Main Question or Discussion Point

In my general relativity course my professor actively refers to the models in the lecture .pdf I have included as "The Robertson Diagram" and "The Ω$\Lambda$ - ΩM Plane", respectively. I am not doubting that he is correct but I would like to do some additional reading on the subject and I am having trouble finding other resources when I search these names. If anyone knows other names that these types of plots go by or resources which explain them I would greatly appreciate it if you could share your knowledge, thank you.

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bcrowell
Staff Emeritus
The $\Omega_\Lambda-\Omega_M$ plane is extremely common, and although I haven't seen it named in exactly that way before, the name is constructed so that it should make clear what it refers to. What is it about your professor's writeup that you're not understanding? Without knowing that, we have no way of knowing what reference to suggest as a supplement.