Macaulay2 » Documentation
Packages » BettiCharacters » character » Character » Character ^ List
next | previous | forward | backward | up | index | toc

Character ^ List -- extract graded component

Description

Extract the component(s) of a character in the given (multi)degree(s).

i1 : R = QQ[x,y,z]

o1 = R

o1 : PolynomialRing
i2 : I = (ideal vars R)^3

             3   2    2      2            2   3   2      2   3
o2 = ideal (x , x y, x z, x*y , x*y*z, x*z , y , y z, y*z , z )

o2 : Ideal of R
i3 : Q = R/I

o3 = Q

o3 : QuotientRing
i4 : S3 = symmetricGroupActors R

o4 = {| y z x |, | y x z |, | x y z |}

o4 : List
i5 : A = action(Q,S3)

o5 = QuotientRing with 3 actors

o5 : ActionOnGradedModule
i6 : c = character(A,0,10)

o6 = Character over QQ
      
     (0, {0})  |  1  1  1
     (0, {1})  |  0  1  3
     (0, {2})  |  0  2  6

o6 : Character
i7 : c^{1}

o7 = Character over QQ
      
     (0, {1})  |  0  1  3

o7 : Character
i8 : c^{{1},{2}}

o8 = Character over QQ
      
     (0, {1})  |  0  1  3
     (0, {2})  |  0  2  6

o8 : Character
i9 : c^{3}

o9 = Character over QQ
      

o9 : Character

Ways to use this method:


The source of this document is in /build/reproducible-path/macaulay2-1.26.05+ds/M2/Macaulay2/packages/BettiCharacters.m2:3859:0.