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add ordered set partitions as supported findstat collection #36096

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Aug 27, 2023
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add ordered set partitions as supported findstat collection #36096

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9 changes: 8 additions & 1 deletion src/sage/databases/findstat.py
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Original file line number Diff line number Diff line change
Expand Up @@ -259,6 +259,7 @@ def mapping(sigma):
from sage.combinat.colored_permutations import SignedPermutation, SignedPermutations
from sage.combinat.plane_partition import PlanePartition
from sage.combinat.decorated_permutation import DecoratedPermutation, DecoratedPermutations
from sage.combinat.set_partition_ordered import OrderedSetPartition, OrderedSetPartitions

######################################################################
# the FindStat URLs
Expand Down Expand Up @@ -4670,7 +4671,13 @@ def name(self, style="singular"):
for i, v in enumerate(x, 1))) + "]",
DecoratedPermutations,
lambda x: x.size(),
lambda x: isinstance(x, DecoratedPermutation))}
lambda x: isinstance(x, DecoratedPermutation)),
"OrderedSetPartitions":
_SupportedFindStatCollection(lambda x: OrderedSetPartition(literal_eval(x.replace('{','[').replace('}',']'))),
str,
OrderedSetPartitions,
lambda x: x.size(),
lambda x: isinstance(x, OrderedSetPartition))}


class FindStatCollections(UniqueRepresentation, Parent):
Expand Down
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