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Counting the length of faces of a particular type of graphs

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#combinatorics #graph-theory #planar-graphs
1.4k
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Showing a non-planar graph has a $K_5$ or $K_{3,3}$ subdivision

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#graph-theory #planar-graphs
43
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Graphs of convex polytopes

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#graph-theory #combinatorial-geometry #convex-geometry #planar-graphs #polytopes
187
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Question on proving any planar graph contains a vertex of at most degree $~5~$.

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#graph-theory #planar-graphs
267
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Euler's Formula for 1-planar graphs

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#graph-theory #planar-graphs
78
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Links of a 2-complex embedded in $\mathbb{R}^3$

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#general-topology #graph-theory #planar-graphs #simplicial-complex
126
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How the projection of third Reidemeister move is a homotopy of immersed knot diagrams?

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#algebraic-topology #geometric-topology #knot-theory #planar-graphs #low-dimensional-topology
314
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Bounding points by lines

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#combinatorics #geometry #graph-theory #intuition #planar-graphs
23
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Problem with definition of planar graphs.

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#planar-graphs
160
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Are there highly symmetric polyhedra in which most of the vertices are of degree seven?

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#polyhedra #planar-graphs
163
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Can the vertices of a planar graph of min degree 3 be covered with edges of average weight ( sum of degrees) at most 14?

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#graph-theory #planar-graphs #extremal-graph-theory
71
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Is "Recognizing" 1-planar graphs the same as "Generating" them?

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#graph-theory #planar-graphs
113
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How to measure the 'skew-ness' of a set of vertices?

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#planar-graphs
85
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Are there graphs embeddable on $S^2$ but not on $\mathbb{R}^2$?

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#graph-theory #proof-explanation #planar-graphs
76
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Is there a notion of "face" for bounded genus graphs?

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#graph-theory #planar-graphs

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