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Martin Sleziak
Martin Sleziak
9:20 AM
That is nice that this tag is going to be added. Generally how do I request correctly for new (other) tags? — user122424 yesterday
@user122424 Whether or not the tag is going to be added depends on the outcome of that discussion on meta. (So if you have some arguments why those tags might be useful, you could comment there - or at least upvote the suggestion.) Re: How to I request for new tags? Well, the linked post is an example - you can post suggestions of new tags on meta. But perhaps it's better to discuss this in more detail in chat. — Martin Sleziak 7 secs ago
It has quite a reasonable answer and other questions linked there are also related.
But you have already seen several of those questions, since they were mentioned in the comments to your post: Creating new tags/ AEC. math.meta.stackexchange.com/questions/linked/29516
In short: You can certainly create new tags. But you should not be surprised if they are removed by other users who do not consider them useful.
Possibly, if you still think that the tag is useful, you might propose the creation of the new tag on meta. Either in the tag management thread or - if you think that the tag will require more extensive discussion - as a separate question.
 
 
4 hours later…
Feeds
Feeds
1:02 PM
-1
Q: Can somebody create T-Student distribution tag?

schlebeToday, I have written a question linked to T-Student distribution. When I come to fill TAGS field, I'm surprise to not find T-Student distribution tag. Can somebody that has more than 1000 reputations create it ? Thanks

support tagging
 
 
5 hours later…
Martin Sleziak
Martin Sleziak
6:07 PM
new-tag A new tag structural-stability was created by Matheus Manzatto.
2
Q: $\Sigma$-equivalence between $(y,z,1)$ and $(y+\mathcal{O}(3),z+\mathcal{O}(3),1)$

Matheus ManzattoConsider the sets $\mathfrak{X}(\mathbb{R}^3) = \{X: \mathbb{R}^3 \to \mathbb{R}^3; X \mbox{ is smooth}\}$ and $\Sigma = \{0\}\times\mathbb{R}^2$. Let $X, Y$ be vector fields in $\mathfrak{X}(\mathbb{\mathbb{R}}^3)$, such that $$X(x,y,z) = (y,z,1) $$ and $$Y(x,y,z) = (y+ \mathcal{O}_1(3),z+\mat...

ordinary-differential-equations dynamical-systems structural-stability
Structural stability
In mathematics, structural stability is a fundamental property of a dynamical system which means that the qualitative behavior of the trajectories is unaffected by small perturbations (to be exact C1-small perturbations). Examples of such qualitative properties are numbers of fixed points and periodic orbits (but not their periods). Unlike Lyapunov stability, which considers perturbations of initial conditions for a fixed system, structural stability deals with perturbations of the system itself. Variants of this notion apply to systems of ordinary differential equations, vector fields on smooth...
 

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