Code
σ22k ∩ [grass(4,4+k,σ)]
Letterio Gatto's code in terms of degrees of schubert varieties.
For comparison: schubert in maple
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schubert2 in Macaulay2
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In Macaulay2 without the overhead of the whole of schubert2
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Todo: Implement Gatto's ideas as a new engine for schubert.
ELMS r=10, 11, 12
Jan-Magnus Økland