4 ms·
> I don't think they're claiming surjectivity here. What definition of invertible doesn't include surjectivity?
by RossBencina 1y ago
> I don't think they're claiming surjectivity here.
What definition of invertible doesn't include surjectivity?
- diffeomorphism 1y agoMany? Just add a "by restricting to the image, we may wlog assume surjectivity". The question is usually more about whether the inverse is also continuous, smooth, easy to compute....etc.
- deleted 1y ago[deleted]