wallType -- get the type of a wall for a given quiver

Synopsis

Usage:

wallType (Qplus, Q)
Inputs:
- Q, an instance of the type ToricQuiver,
- Qplus, a list,
Outputs:
- wall type is given by (ZZ, ZZ)

Description

every wall can be represented uniquely by a partition of the vertices Q0 of Q into two sets Qplus and Qminus. We denote the wall W by the subset of vertices Qplus used for defining it.

The type of the wall is defined as (t+,t-) where t^+ is the number of arrows starting Qplus and ending in Qminus, and t- is the number of arrows starting Qminus and ending in Qplus.

i1 : wallType({0,2,3}, bipartiteQuiver(2, 3))

o1 = (1, 2)

o1 : Sequence

Ways to use `wallType` :

"wallType(List,ToricQuiver)"
wallType(List,Matrix) (missing documentation)

For the programmer

The object wallType is a method function.

wallType -- get the type of a wall for a given quiver

Synopsis

Description

Ways to use wallType :

For the programmer

Ways to use `wallType` :