Skip to main content
Anweshi's user avatar
Anweshi's user avatar
Anweshi's user avatar
Anweshi
  • Member for 14 years, 11 months
comment
Ways to prove the fundamental theorem of algebra
It had been much more fun to read short proofs in this page itself. Figuring out Russian is a headache if you are a non-Russian. It is hard enough even if you are a Russophile, but not Russophile enough to learn the language. Of course, all this is unless you were at Princeton, and you had to pass an exam in that course!
comment
Modular forms reference
Shimura is the standard reference. Also he is the prover of all this stuff and creator of many streams of thought in the subject. Unfortunately his book is unreadable. See my answer below and the comments along with it.
comment
When is a coarse moduli space also a fine moduli space?
@Ben. I have added the word "also" to the title. This should pre-empt the particular objection of yours.
comment
Modular forms reference
I make apologies in advance for the polemics. But every person has a personal taste, and this is mine. There are people who don't like Shakespeare, though he is very reputed. If you have objections to me, please ignore me as a philistine like one of those guys.
comment
Modular forms reference
I saw you complaining about Shimura and that is why I pointed this one out. Diamond and Shurman is "too soft" in a sense. But Shimura uses the hopelessly old language for algebraic geometry(Weil's foundations), and is unreadable. Hida has rewritten all that Grothendieck-style in his "Geoemtric modular forms" book; but if anything that is even more of a mess to figure out and is completely unreadable. The Antwerp volumes are by far the best I know of, though a bit old.
revised
Loading…
comment
Writing down minimal Weierstrass equations
But the Tate algorithm is for just one prime. The PARI algorithm is perhaps a more heuristic one, considering all primes at once.
revised
Loading…
comment
Ways to prove the fundamental theorem of algebra
This is cool. The non-trivial analysis statement used is the intermediate value theorem. And there is an explicit expression for square roots, using the completeness of $\mathbb{R}$. I really like this proof.
comment
Ways to prove the fundamental theorem of algebra
The second one is quite interesting, and new for me. Thanks. The first one is not exactly the same as in Ahlfors book; but some arguments are common to both.
answered
Loading…
comment
Uniformization theorem for Riemann surfaces
The moderator Anton revived that question after Anweshi's request.
comment
What is the current status of the function fields Langlands conjectures?
A comment: It is mentioned in pages about Drinfel'd that he proved the functional field Langlands. Lafforgue is perhaps more general?
comment
Is there any value in studying divisors with coefficients in a ring R?
If $\mathbb{R}$ is complete, so are the $\mathbb{Q}_p$ for each prime $p$.
comment
When is a coarse moduli space also a fine moduli space?
@Ben. "a coarse moduli space is fine if and only if a fine moduli space exists" is annoying obvious to me since I have looked in GIT. However I am slippery with stuff like stacks. I am not experienced at that level. I am trying to figure such ideas out, and after reading the nLab page(but not any textbook on stacks or research papers), I am posing a question which seemed plausible to me. A helpful answer will enlighten me more on moduli problems and stacks. I hope my level is clear now.
comment
What is interesting/useful about big Witt Vectors?
A short intro could be there in J.-P. Serre, Local Fields. Also one could mention the applications to Fontaine theory.
comment
Uniformization theorem for Riemann surfaces
Anweshi deleted it in when he feared that it will be closed. Anweshi was harassed too much and even got a ban for asking questions.
comment
What is the current status of the function fields Langlands conjectures?
This may be a stupid question. But is there any other online math discussion forum where this type of question will be answered? If so, please give me the URL and I will be most grateful. I had been looking for one and was most unsuccessful. In a blog only the people who blog can post, and the online math discussions forums I could find were all not advanced enough.
awarded
comment
Torsion of an abelian variety under reduction.
Yes, but could somebody give a reference for understanding this whole stuff, of connecting abelian varieties, formal groups, $p$-divisible groups and so on? I find looking at the literature to be like searching for a needle in a haystack. I couldn't find a clear set of notions which I can use as a pivot for sorting my head out on this issue.