Question

How to draw a sine wave by slicing a cylinder?

score 270 · Answer 1 · 2026-02-23 06:22:50

270

Views

How to draw a sine wave by slicing a cylinder?

Published on 23 Feb 2026 - 6:22

score 121 · Answer 2 · 2022-07-04 00:00:21

121

Views

Justify why a maximal-planar graph cannot have vertices of degree ≤ 2.

Published on 04 Jul 2022 - 0:00

score 53 · Answer 3 · 2022-07-11 11:25:52

53

Views

Does every 3-valent planar graph admit a maximal tree, which is non-branching?

Published on 11 Jul 2022 - 11:25

score 739 · Answer 4 · 2022-07-12 03:10:21

If a connected planar graph $G$ has $20$ faces, and every vertex of $G$ has degree exactly $4$ then find the number of vertices of $G$.

score 37 · Answer 5 · 2026-03-28 21:06:26

37

Views

What kind of graph is this? Hamiltonian by association?

Published on 28 Mar 2026 - 21:06

score 750 · Answer 6 · 2022-07-19 07:03:02

750

Views

Such graph $G^*$ is planar, if and only if $G$ is outerplanar

Published on 19 Jul 2022 - 7:03

score 67 · Answer 7 · 2022-07-23 20:37:39

67

Views

Can this graph be redrawn after merging two specific vertices and remain planar?

Published on 23 Jul 2022 - 20:37

score 118 · Answer 8 · 2022-07-30 03:14:17

118

Views

How many planar graphs of vertex degrees all $\ge4$ are there?

Published on 30 Jul 2022 - 3:14

score 79 · Answer 9 · 2022-07-30 12:53:38

79

Views

How many planar graphs of vertex degrees all ≥4 are there?, extended (by request of G.M.)

Published on 30 Jul 2022 - 12:53

score 49 · Answer 10 · 2022-08-04 06:39:22

49

Views

graph theory - maximal graph without cycles and maximal planar graph without triangles

Published on 04 Aug 2022 - 6:39

score 45 · Answer 11 · 2026-03-27 14:57:37

45

Views

Comparing networks using graph theory

Published on 27 Mar 2026 - 14:57

score 273 · Answer 12 · 2022-08-05 09:03:05

273

Views

If $\Delta(G)≤3$, then planarity of $G$ implies planarity of the line graph $L(G)$.

Published on 05 Aug 2022 - 9:03

score 53 · Answer 13 · 2026-03-27 14:57:12

53

Views

Comparing network graphs

Published on 27 Mar 2026 - 14:57

score 62 · Answer 14 · 2022-08-08 11:23:20

62

Views

How high the connectivity of a planar graph can ensure that any two faces share at most two vertices?

Published on 08 Aug 2022 - 11:23

score 154 · Answer 15 · 2022-08-10 16:02:49

154

Views

Homology group of a planar graph

Published on 10 Aug 2022 - 16:02

List Question

How to draw a sine wave by slicing a cylinder?

Justify why a maximal-planar graph cannot have vertices of degree ≤ 2.

Does every 3-valent planar graph admit a maximal tree, which is non-branching?

If a connected planar graph $G$ has $20$ faces, and every vertex of $G$ has degree exactly $4$ then find the number of vertices of $G$.

What kind of graph is this? Hamiltonian by association?

Such graph $G^*$ is planar, if and only if $G$ is outerplanar

Can this graph be redrawn after merging two specific vertices and remain planar?

How many planar graphs of vertex degrees all $\ge4$ are there?

How many planar graphs of vertex degrees all ≥4 are there?, extended (by request of G.M.)

graph theory - maximal graph without cycles and maximal planar graph without triangles

Comparing networks using graph theory

If $\Delta(G)≤3$, then planarity of $G$ implies planarity of the line graph $L(G)$.

Comparing network graphs

How high the connectivity of a planar graph can ensure that any two faces share at most two vertices?

Homology group of a planar graph

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