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SubBundles -- get the subbundles of the tautological filtration on a flag bundle

Synopsis

Description

i1 : F = flagBundle {1,1,2}

o1 = F

o1 : a flag bundle with subquotient ranks {2:1, 2}
i2 : F.SubBundles

o2 = {a sheaf, a sheaf, a sheaf, a sheaf}

o2 : List
i3 : rank \ oo

o3 = {0, 1, 2, 4}

o3 : List
i4 : netList \\ chern \ ooo

     +------------------------+
o4 = |1                       |
     +------------------------+
     |1 + (- H    - H   )     |
     |        2,1    3,1      |
     +------------------------+
     |             2          |
     |1 - H    + (H    - H   )|
     |     3,1     3,1    3,2 |
     +------------------------+
     |1                       |
     +------------------------+

For the programmer

The object SubBundles is a symbol.