expectedBetti(List,ZZ) -- compute the expected betti table from the Hilbert numerator

Synopsis

• Function: expectedBetti

• Usage:

  B=expectedBetti(h,r)

• Inputs:
  • h, a list, values of the hilbert function
  • r, an integer, dimension of ambient protective space
• Outputs:
  • B, a Betti tally, expected Betti table of module with Hilbert function h

Description

i1 : betti expectedBetti({0,0,4,6,3,0,0,0,0},3)

            0  1  2 3 4
o1 = total: 4 10 11 8 3
         2: 4 10  3 . .
         3: .  .  8 2 .
         4: .  .  . 6 3

o1 : BettiTally

Caveat