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Search options not deleted user 6040

This tag is used if a reference is needed in a paper or textbook on a specific result.

4 votes
1 answer
546 views

Product of vertex degrees of an edge in a planar graph

Let $G$ be a planar graph, which we may assume to be a triangulation, with vertex set $V$ and edge set $E$. Suppose the minimum vertex degree is at least 3, and suppose any two distinct edges share at …
Grant Lakeland's user avatar
19 votes
1 answer
894 views

Locus of equal area hyperbolic triangles

Henry Segerman and I recently considered the following question: Given a fixed area $A < \pi$ and two fixed points in the upper half-plane model for hyperbolic $2$-space, what is the locus of points …
Grant Lakeland's user avatar