All Questions
1
question
0
votes
0
answers
58
views
On the group action $\psi: X \times \Bbb R^*_+ \to X$
Today I revisited the concept of a group action with someone. I recalled the definition of a "flow" which is a group action of the additive group of real numbers on the set $X:$
$$\varphi: X ...
- 756