ring(SimplicialModule) -- access the ring of a simplicial module or a simplicial module map

Function: ring
Usage:

ring C
Inputs:
- C, a Simplicial Module, or a SimplicialModuleMap
Outputs:
- a ring,

Description

Every simplicial module or simplicial module map has a base ring. This function accesses that information.

i1 : S = ZZ/101[a,b,c,d];

i2 : C = simplicialModule freeResolution coker vars S

      1      5      15      35      70
o2 = S  <-- S  <-- S   <-- S   <-- S  <-- ...
                                    
     0      1      2       3       4

o2 : SimplicialModule

i3 : ring C

o3 = S

o3 : PolynomialRing

i4 : assert(ring C === S)

i5 : ring id_C

o5 = S

o5 : PolynomialRing

i6 : assert(ring id_C === S)

Ways to use this method:

ring(SimplicialModule) -- access the ring of a simplicial module or a simplicial module map
ring(SimplicialModuleMap)

The source of this document is in SimplicialModules/SimplicialModuleDOC.m2:363:0.

ring(SimplicialModule) -- access the ring of a simplicial module or a simplicial module map

Description

See also

Ways to use this method: