3-manifolds/SnapPy

Browser: AKA field for a closed manifolds doesn't show Dehn filling coeffs

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Neil Hoffman reports:

I noticed that in M.browse() the also known as feature is listing manifolds by 'name' instead of str(M). (see attached picture) This is fine for cusped manifolds but slightly confusing for closed manifolds. Of course, this behavior is only an issue for closed manifolds that are surgeries on more than one named/known manifold. For example, v3184(0,1) is also s882(1,2).

In[88]: v = Manifold('v3184')

In[89]: v.browse()

In[90]: v.dehn_fill((0,1),0)

In[91]: v.identify()

Out[91]: [s882(1,2)]

In[92]: vF = v.identify()[0]

In[93]: vF

Out[93]: s882(1,2)

In[94]: vF.name()

Out[94]: 's882'

In[95]: str(vF)

Out[95]: 's882(1,2)'

Screen Shot 2020-01-13 at 8 54 14 AM