Persistent homology?
On 8/17/18, 12:09 PM, "Friam on behalf of uǝlƃ ☣" <[email protected]
on behalf of [email protected]> wrote:
Maybe. But I tend to think of a hub as a kind of homogenous mixing point.
E.g. a bicycle hub has all the spokes connnecting to the hub at equal
distances. For water flow, something like a sewage treatment plant might have
a reservoir into which pipes or canals feed, where the pipes/canals are all
roughly the same length and enter the reservoir at similar distances and
(possible) flow rates (pipe sizes, etc.).
A river confluence, for example, might have 2 streams merge at one point,
then a 3rd stream merge in later, a stream merging with a big stream, etc.
So, there's some implication that the merging/branching is heterogeneous.
Abstracting the detail of such a thing would definitely make it some sort
of "mixing hub". But it wouldn't be "well-mixed" if you zoomed in. All
concrete hubs (e.g. Unilever in a supply chain model or whatnot) *do* have some
sort of internal structure you can see when you zoom in, though. So, maybe a
qualified phrase like "fractal hub" would work?
On 08/17/2018 10:53 AM, Marcus Daniels wrote:
> A hub?
>
> On 8/17/18, 11:47 AM, "Friam on behalf of uǝlƃ ☣"
<[email protected] on behalf of [email protected]> wrote:
>
>
> I need a word (or short phrase) to refer to the portion of a network
where the edges converge or diverge (more than other parts of the network.
Examples might be a river delta or the branching (debranching?) of blood
vessels or lungs. "Plexus" or "knot" don't work because they could ambiguously
refer to something like a tapestry or ... well, a knot, where each thread
remains separate, but winds around other threads. Something close to
"canalization" seems appropriate. But I don't want to imply the generation (or
dissolution) of the thing. E.g. [arter|ang]iogenesis are not the type of words
I'm looking for.
>
> There's got to be a good word for such, perhaps from graph theory or
"network theory". Any help will be rewarded by an IOU for a pint of beer. 8^)
--
☣ uǝlƃ
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