mathwonk's latest activity

Talking a bit more with ChatGPT about this subject, I think I got a sort of understanding breakthrough, after understanding two key...

Thank you for drawing attention to this. Many years ago, one of my friends told me as a joke on himself, that he had been referee for...

by the way, if you decide to try this class, the fact that you know his source for the lecture material and for the exams, should make...

The way you describe it, the prof sounds very unreasonable indeed, but we have not heard his version. And at some point you should...

To illustrate what a la-la land the current grading practice at Harvard inhabits, the Harvard college student handbook already defines...

Grade inflation is a problem everywhere : https://www.gradeinflation.com/ Personally, I think it's detrimental for students sense of...

That article was interesting. Some statements should be taken with salt however, e.g. the suggestion that grade inflation is related to...

I think this is a difficult problem. As a student at Harvard in the early 1960’s, when maybe 15% of grades were A’s, I got a lot of...

I am starting to think that the question of the thread is not about fibler bundles, but whether isomorphic objects are to be considered...

It seems indeed this is the usual meaning of trivial, i.e. equivalent to a product, but without a choice of trivialization. I was...

What I am used to and maybe this is wrong, a trivial bundle is one for which there exists a global trivialization. But there is no need...

well yes. I had assumed you meant this to be an F-bundle over A, in which case those two projections give, in my opinion, one...

Yes however, even if diffeomorphic to a product, there is no canonical/natural diffeomorphism. That's the difference with a product that...

A choice of a product decomposition of a topological space that is homeomorphic to a Cartesian product AxF naturally supplies a...