Take the 2-minute tour ×
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.

I've been reading Hatcher's book on vector bundles and I'm just getting into the section of Steifel-Whitney numbers. Naturally, I'm interested in which sequences of such numbers are realizable, and Googling revealed the following MO thread. Unfortunately, the answers there all seem a little opaque to me. Does anyone know whether the following admits are more understandable answer: If the SW class of a bundle is non-trivial, are there any restrictions on the first $i$ such that the $i$th S-W class is nonzero?

Probably a stupid question, but they tend to help me learn.

share|improve this question
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.