# database_mutation_class: Database of exceptional mutation classes of quivers¶

## Description¶

Contains a database of all exceptional mutation classes of quivers.

Every file in the database is of the form mutation_classes_n.dig6 for some n and

• contains a cPickle.dump of a dictionary where

• the keys are tuples representing irreducible exceptional quiver mutation types of rank n, and

• the values are all quivers in the given mutation class stored in canonical form as (dig6,edges) where

• dig6 is the dig6 data of the given DiGraph, and

• edges are the non-simply-laced edges thereof.

• is obtained by running the function

sage.combinat.cluster_algebra_quiver.quiver_mutation_type._save_data_dig6(n, types='Exceptional', verbose=False)

• None

optional

## Version Information¶

package-version.txt:

1.0


## Equivalent System Packages¶

However, these system packages will not be used for building Sage because spkg-configure.m4 has not been written for this package; see https://trac.sagemath.org/ticket/27330