Plane Maps and Planar Graphs: A Mutual Relationship?

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SUMMARY

All Plane Maps can be represented by planar graphs, and conversely, every planar graph corresponds to a plane map. This relationship is established through the representation of regions as vertices and borders as edges. The discussion highlights the fundamental nature of planar graphs in depicting geographical maps, emphasizing that non-planar graphs cannot be accurately represented as plane maps due to their inherent complexity.

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  • Understanding of planar graphs and their properties
  • Familiarity with graph theory terminology
  • Knowledge of vertex and edge representation in graphs
  • Basic concepts of geographical mapping
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Jummeh
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Plane Map <=> Planar Graph ??

Hi,
Wondering if anyone can help me to find some kind of proof that all Plane Maps can be represented by planar graphs and vice versa... for all Planar Graphs exists a Plane Map?

I did a quick search without much luck.

Thanks
 
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Jummeh said:
Hi,
Wondering if anyone can help me to find some kind of proof that all Plane Maps can be represented by planar graphs and vice versa... for all Planar Graphs exists a Plane Map?

I did a quick search without much luck.

Thanks
I can only gave a rough guess, I may not even give an answer relevant to the question, but if I understand you, then each "region" or "country" on the map can be represented by a vertex of the graph, and every "border" between "regions" on the map can be represented by an edge on the graph.
 
yes basically, but why can there not be maps of non-planar graphs?
 

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