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10
votes
0answers
100 views
Has anyone implemented cohomology for complex manifolds?
I'm investigating the cohomology of complex manifolds, and need to construct chain complexes, Mayer-Vietoris sequences etc. I use Mathematica for numerically tracing manifolds with geodesics, but ...
6
votes
3answers
362 views
Plotting the open ball for the post office metric space
The post office metric space, $P$ has the distance function defined as follows:
$$
d_P (\mathbf{x},\mathbf{y}) := \begin{cases}
0 & \mathbf{x} = \mathbf{y}\\
\Vert \mathbf{x}\Vert_2+\Vert ...
12
votes
1answer
264 views
Generating a topological space diagram for an n-element set
Over on StackOverflow I asked a similar question for the n=3 case, but the answer given doesn't easily generalize.
How can I make a diagram such as this:
But for a general n-element space ...
