6 ms·
the problem with additive notation is that the braid group isn't commutative when number of strands is > 2.
by geordiew 10mo ago
the problem with additive notation is that the braid group isn't commutative when number of strands is > 2.
- MarkusQ 10mo agoExcellent point. I tend to enjoy "garden path" pedagogy, leading the students to surprising twists and having them explore -- but it's important to lead and not mislead. So yeah, multiplicative notation is probably better.