planar graph of Submultiples
89164
When is the graph of the divisor relation on $[n]$ planar?
44547
How can I subdivide this plane into even squares?
22540
Bisecting line segments in a tetrahedron.
50886
Two disjoint spanning trees, spanning subgraph with all even degrees
78511
Splitting disconnected vertices in different objects
154564
Prove that the sum of minimum edge cover and maximum matching is the vertex count
50748
A pyramid $ABCDS$ in which all edges have different lengths and $|AS|+|CS|=|BS|+|DS|$
36193
2D Visualization of links and knots
19413
Degree sequence multigraph without loop
142861
Multipartite graphs which are not planar
49045
Graph theory: Tree holds two sub-tree with an amount of vertices
37984
Prove a planar graph with all regions having even degree can be colored with 2 colors
122691
Graphs of Linear Inequalities
95132
Graph with multiple Y axes
72417
Bipartite graphs
131736
Proving a triangle with different edge colors exists in a graph.
138226
Finding All n-regular graphs on m vertices