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Feb
2
comment Total measure and Riesz theorem
Is this a homework question?
Jan
20
comment Cardinality of collection of subfields of $\mathbb C$
Thank you. I guess this is obvious if you know about transcendence bases.
Jan
20
accepted Cardinality of collection of subfields of $\mathbb C$
Jan
20
comment Cardinality of collection of subfields of $\mathbb C$
Thanks - I'm surprised google didn't pull up your question. I did look first.
Jan
20
asked Cardinality of collection of subfields of $\mathbb C$
Jan
18
accepted roots of multi-variable polynomials and extension fields
Jan
9
awarded  Curious
Jan
8
comment roots of multi-variable polynomials and extension fields
I'm reminded of a comment by Miles Reid, who said (I think) that the level of questions that AG people are asked by non-AG people is analogous to the level questions asked by non-mathematicians of mathematicians.
Jan
8
comment roots of multi-variable polynomials and extension fields
Thanks again! I really had in mind $K=\mathbb Q$, but this struck me as a fairly obvious question (it arose from a discussion with a colleague about an integration formula due to Gauss), and I was embarrassed to have no idea about the answer.
Jan
8
awarded  Yearling
Jan
8
comment roots of multi-variable polynomials and extension fields
can i ask 1 more question: is this the lowest tech answer that's possible?(there are quite a lot of words in it that I have heard before, but have no idea what they mean).
Jan
8
comment roots of multi-variable polynomials and extension fields
Thanks Qiaochu.
Jan
8
asked roots of multi-variable polynomials and extension fields
Aug
26
comment Permutations of given length
You're asking to express $n$ as $m_1+\ldots+m_k$ with $m_i\le M_i$
Aug
19
comment Orbit closures of symmetric bilinear form
en.wikipedia.org/wiki/Symmetric_bilinear_form
Jun
16
comment How often does a one-dimensional lazy random walk end at the origin?
This doesn't really seem like a suitable question here to me.
Apr
17
comment Integer solution to the equation
Ummm.. (1) this is not linear algebra; and (2) where does this problem come from?
Jan
28
accepted Measurability Question?
Jan
28
comment Measurability Question?
@PaulMcKenney: In that case it is direct. I just didn't know the definition. Thanks!
Jan
27
comment Measurability Question?
Sorry. I'm still having trouble seeing the connection between not being a reverse well ordering; and having an increasing subsequence.