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pureCohomologyTable(List,ZZ,ZZ) -- pure cohomology table given zeros of Hilbert polynomial

Synopsis

Description

Given a list of distinct integers this function produces a truncated cohomology table for a supernatural vector bundle with root sequence L.
i1 : pureCohomologyTable({-3,-2,0},-5,5)

         -5 -4 -3 -2 -1 0 1  2  3  4   5
o1 = 3: 120 70 36 15  4 . .  .  .  .   .
     2:   .  .  .  .  . . .  .  .  .   .
     1:   .  .  .  .  . 1 .  .  .  .   .
     0:   .  .  .  .  . . 6 20 45 84 140

o1 : CohomologyTally

See also

Ways to use this method: