Macaulay2 » Documentation
Packages » ThinSincereQuivers > ReturnSingletons
next | previous | forward | backward | up | index | toc

ReturnSingletons

Description

This is an optional argument for the function maximalNonstableSubquivers, which allows the user to consider single vertices as subquivers. For most computations, these subquivers are trivial, and are ignored.

i1 : maximalNonstableSubquivers(bipartiteQuiver (2, 3), ReturnSingletons => true)

o1 = HashTable{NonSingletons => {{0, 1, 2, 3}, {0, 1, 2, 4}, {0, 1, 2, 5}, {0, 3, 4, 5}, {1, 3, 4, 5}, {2, 3, 4, 5}}}
               Singletons => {{0}, {1}}

o1 : HashTable
i2 : maximalNonstableSubquivers(bipartiteQuiver (2, 3), ReturnSingletons => false)

o2 = HashTable{NonSingletons => {{0, 1, 2, 3}, {0, 1, 2, 4}, {0, 1, 2, 5}, {0, 3, 4, 5}, {1, 3, 4, 5}, {2, 3, 4, 5}}}

o2 : HashTable

See also

Functions with optional argument named ReturnSingletons :

For the programmer

The object ReturnSingletons is a symbol.