Combinatorica`
Combinatorica`
Isomorphism
As of Version 10, most of the functionality of the Combinatorica package is built into the Wolfram System. »
Isomorphism[g,h]
gives an isomorphism between graphs g and h if one exists.
Isomorphism[g,h,All]
gives all isomorphisms between graphs g and h.
Isomorphism[g]
gives the automorphism group of g.
Details and Options
- Isomorphism functionality is now available in the built-in Wolfram Language function FindGraphIsomorphism.
- To use Isomorphism, you first need to load the Combinatorica Package using Needs["Combinatorica`"].
- This function takes an option Invariants->{f1,f2,…}, where f1,f2,… are functions that are used to compute vertex invariants. These functions are used in the order in which they are specified.
- The default value of Invariants is {DegreesOf2Neighborhood,NumberOf2Paths,Distances}.
Examples
Wolfram Research (2012), Isomorphism, Wolfram Language function, https://reference.wolfram.com/language/Combinatorica/ref/Isomorphism.html.
Text
Wolfram Research (2012), Isomorphism, Wolfram Language function, https://reference.wolfram.com/language/Combinatorica/ref/Isomorphism.html.
CMS
Wolfram Language. 2012. "Isomorphism." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/Combinatorica/ref/Isomorphism.html.
APA
Wolfram Language. (2012). Isomorphism. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/Combinatorica/ref/Isomorphism.html