Ronny Bergmann

Hm, I don't see a generic name popping up there, so one could maybe trace that back to the first paper where it was mentioned and take the author names?

Cool, so (1) I would prefer to only document the case $\alpha > -1$, since for now we do not have proper coverage for Pseudo-Riemannian metrics (though that could become...

perfect, when I wrote my ideas, I also thought, the names might be a little too long and `StiefelSubmersionMetric` is specific enough I think, yes.

The second paper is covered with #204.

Hm, does the second not cover fixed rank symmetric ones? Maybe I misread those? I don not mean the first paper, which definitely does Stiefel, yes.

Sorry, then I confused them after opening them in tabs.

> * what is the data representation being used (realization of SE(d) to represent points), The usual way we have here is: SE(d) (the manifold type `SpecialEuclidean(d)` or manifold types...

> What I understand from the above code is it is just calling exp on all the parts/components. Exactly, since the group manifold is just a decorator: exp/log are not...

Let me assure you that it is surely not so easy with all these different representations to properly distinguish them (hence all my questions), one has to be very precise...

> I've seen the plus operator (⊕) used in robotics. The question is: How is it defined? Having seen it – does not give (me) the context. So for me...