K_(1, 1, 3)
vertex count | 5 edge count | 7 connected component count | 1
almost Hamiltonian | apex | asymmetric | biconnected | bridgeless | chordal | chromatically nonunique | class 1 | complete k-partite | complete tripartite | connected | cyclic | determined by resistance | determined by spectrum | Eulerian | fan | graceful | integral | Laman | maximally nonhamiltonian | noncayley | nonempty | nonhamiltonian | no perfect matching | perfect | planar | projective planar | simple | split | strongly perfect | traceable | uniquely colorable | weakly perfect
triangle and two singletons
7-graph 1020
vertex degrees | 2 (3 vertices) | 4 (2 vertices)
radius | 1 diameter | 2 girth | 3 vertex connectivity | 2 edge connectivity | 2
-((x - 3) x^2 (x + 1) (x + 2))
x^4 y^3 + 7 x^4 y^2 + 18 x^4 y + 20 x^4 + 3 x^3 y^2 + 15 x^3 y + 32 x^3 + 3 x^2 y + 21 x^2 + 7 x + 1
x^4 + 3 x^3 + 3 x^2 y + 3 x^2 + 3 x y^2 + 3 x y + x + y^3 + y^2 + y
chromatic number | 3 edge chromatic number | 4
(-2)^1 (-1)^1 0^2 3^1
(0 | 1 | 1 | 1 | 1 1 | 0 | 1 | 1 | 1 1 | 1 | 0 | 0 | 0 1 | 1 | 0 | 0 | 0 1 | 1 | 0 | 0 | 0)
(1 | 1 | 1 | 1 | 0 | 0 | 0 1 | 0 | 0 | 0 | 1 | 1 | 1 0 | 1 | 0 | 0 | 1 | 0 | 0 0 | 0 | 1 | 0 | 0 | 1 | 0 0 | 0 | 0 | 1 | 0 | 0 | 1)
Hosoya index | 14 Kirchhoff index | 7 stability index | 6 Wiener index | 13