bipartite (T2,X2,X3,hole,triangle)-free bipartite tolerance
co-trapezoid circle graph with equator circle-polygon circular convex bipartite co-comparability co-comparability
comparability co-perfectly orderable co-permutation comparability
weakly chordal comparability graphs of dimension 2 posets comparability graphs of dimension 4 posets comparability graphs of posets of interval dimension 2, height 1 containment graph of intervals domination modular open-neighbourhood-Helly permutation pseudo-modular
triangle-free spider graph unimodular
P4,P6,X25,X26,X27,X28,X29,odd-cycle)-free (2K2,C5,triangle)-free (2K2,odd-cycle)-free 2K2-free
bipartite (T2,cycle)-free bipartite
bithreshold bipartite chain caterpillar difference | Recognition: | Linear | details |
| Cliquewidth expression: | Unbounded or NP-complete | details |
| Cliquewidth: | Unbounded | details |
| Weighted independent set: | Linear | details |
| Independent set: | Linear | details |
| Domination: | Linear | details |
Algorithms for Recognition
Linear
[996]
Algorithms for Cliquewidth expression
See also
: Cliquewidth : Weighted independent set : Domination
Algorithms for Cliquewidth
Unbounded
[1182]
See also
: Cliquewidth expression
Algorithms for Weighted independent set
Linear from permutation
[1164]
Polynomial [O(V^5E^3)]
from Berge
bull-free
[1278]
Polynomial [O(n logn logn)]
from trapezoid
| Timebound valid only when given the model [1120] ; otherwise O(n^2). |
| Variant of matching. |
Algorithms for Independent set
Linear from co-comparability
[1100]
Polynomial from Gallai
[1081]
Polynomial from comparability
[453]
Polynomial [O(VE)]
from weakly chordal
[530]
[1119]
Polynomial from Meyniel
[169]
Polynomial from clique separable
[1081]
See also
: Weighted independent set
Algorithms for Domination
Linear [O(V)]
from permutation
[1342]
[1147]
[1148]
[1149]
[1165]
Polynomial from k-polygon
[352]
Polynomial from co-comparability
[1150]
[1151]
Polynomial from convex
[1167]
Polynomial from AT-free
[1152]
Polynomial [O(n^2 log^5 n)]
from co-bounded tolerance
[1172]
| Assuming a square embedding of the graph is given; finding this is an open problem. |