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Add # long time to topology #37483

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Mar 31, 2024
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Add # long time to topology #37483

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8 changes: 4 additions & 4 deletions src/sage/topology/moment_angle_complex.py
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Original file line number Diff line number Diff line change
Expand Up @@ -410,7 +410,7 @@ def components(self):
sage: product_of_spheres = S3.product(S3)
sage: Z.cohomology()
{0: 0, 1: 0, 2: 0, 3: Z x Z, 4: 0, 5: 0, 6: Z}
sage: Z.cohomology() == product_of_spheres.cohomology()
sage: Z.cohomology() == product_of_spheres.cohomology() # long time
True
"""
return self._components
Expand Down Expand Up @@ -592,7 +592,7 @@ def homology(self, dim=None, base_ring=ZZ, cohomology=False,

sage: Z = MomentAngleComplex([[0,1,2,3,4,5], [0,1,2,3,4,6],
....: [0,1,2,3,5,7], [0,1,2,3,6,8,9]])
sage: Z.homology()
sage: Z.homology() # long time
{0: 0,
1: 0,
2: 0,
Expand Down Expand Up @@ -664,7 +664,7 @@ def cohomology(self, dim=None, base_ring=ZZ, algorithm='pari',
sage: product_of_spheres = S3.product(S3)
sage: Z.cohomology()
{0: 0, 1: 0, 2: 0, 3: Z x Z, 4: 0, 5: 0, 6: Z}
sage: Z.cohomology() == product_of_spheres.cohomology()
sage: Z.cohomology() == product_of_spheres.cohomology() # long time
True
"""
return self.homology(dim=dim, cohomology=True, base_ring=base_ring,
Expand Down Expand Up @@ -718,7 +718,7 @@ def euler_characteristic(self):
sage: X = SimplicialComplex([[0,1,2,3,4,5], [0,1,2,3,4,6],
....: [0,1,2,3,5,7], [0,1,2,3,6,8,9]])
sage: M = MomentAngleComplex(X)
sage: M.euler_characteristic()
sage: M.euler_characteristic() # long time
0
sage: Z = MomentAngleComplex([[0,1,2,3,4]])
sage: Z.euler_characteristic()
Expand Down
4 changes: 2 additions & 2 deletions src/sage/topology/simplicial_complex.py
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Expand Up @@ -917,7 +917,7 @@ class SimplicialComplex(Parent, GenericCellComplex):

sage: l = designs.ProjectiveGeometryDesign(2, 1, GF(4,name='a')) # needs sage.rings.finite_rings
sage: f = lambda S: not any(len(set(S).intersection(x))>2 for x in l)
sage: SimplicialComplex(from_characteristic_function=(f, l.ground_set())) # needs sage.rings.finite_rings
sage: SimplicialComplex(from_characteristic_function=(f, l.ground_set())) # needs sage.rings.finite_rings, long time
Simplicial complex with 21 vertices and 168 facets

TESTS:
Expand Down Expand Up @@ -4776,7 +4776,7 @@ def is_partitionable(self, certificate=False,

Shellable complexes are partitionable::

sage: # needs sage.numerical.mip
sage: # needs sage.numerical.mip, long time
sage: X = SimplicialComplex([[1,3,5], [1,3,6], [1,4,5], [1,4,6],
....: [2,3,5], [2,3,6], [2,4,5]])
sage: X.is_partitionable()
Expand Down
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