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Questions of the kind "What's the name for a X that satisfies property Y?"

5 votes
Accepted

Slice-category-like terminology question

I think what you have defined is just called the category of endomorphisms in $\mathcal{C}$. See for instance Marian Mrozek's 1992 paper Normal functors and retractors in categories of endomorphisms f …
Vidit Nanda's user avatar
  • 15.5k
5 votes
Accepted

Terminology Concerning Oriented Simplicial Complexes

The terminology is not new, you can find it in this paper from 1969. So, your maps are just maps of ordered simplicial complexes. …
Vidit Nanda's user avatar
  • 15.5k
5 votes

Decomposition vs filtration vs stratification

At the risk of sounding (oxy?)moronic, I'd say that the term "stratification" is locally standard. Meaning, there exist (at least) three communities which agree internally on what the term means, but …
Vidit Nanda's user avatar
  • 15.5k
4 votes
0 answers
95 views

Name for metric spaces with useful unique-ball-intersection property?

When dealing with the problem of extending a Lipschitz function $f:A \to Y$ between metric spaces across an inclusion $A \hookrightarrow X$, one often imposes (conditions which imply) the following pr …
Vidit Nanda's user avatar
  • 15.5k
4 votes
Accepted

Pairs of paths with the same source and target

With this terminology you can simultaneously get the idea across and score cheap points for alliteration. …
Vidit Nanda's user avatar
  • 15.5k
1 vote

What is the term for combining functions $f_1,f_2,\dots,f_n$ into a tuple $(f_1,\dots,f_n)$?

A reasonable case could be made for calling your tuple-function a multi-span in whichever category $C$ your $\{f_i\}_1^n$ inhabit. When $n=2$, this reduces to the usual span given by roof-diagrams whi …
Vidit Nanda's user avatar
  • 15.5k
1 vote
2 answers
291 views

Terminology generalizing "quasi-isomorphism"

What is the standard terminology for a morphism of $\mathcal{C}$ so that its image under $\mathcal{F}$ is a (mono, epi, iso) morphism? …
Vidit Nanda's user avatar
  • 15.5k