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Top Questions
84
votes
Why is Lebesgue integration taught using positive and negative parts of functions?
real-analysis
integration
measure-theory
asked May 18, 2010 at 18:29
mathoverflow.net
62
votes
who fixed the topology on ideles?
nt.number-theory
ho.history-overview
asked Oct 6, 2010 at 10:34
mathoverflow.net
58
votes
Looking for a definitive source about Dirichlet finally proving the Unit Theorem in the Sistine Chapel
number-theory
math-history
asked Aug 27, 2012 at 2:01
math.stackexchange.com
41
votes
Usage of "про" instead of "о"
выбор-слова
предлоги
asked Jun 14, 2012 at 3:47
russian.stackexchange.com
39
votes
Definitive source about Dirichlet finally proving the Unit Theorem in the Sistine Chapel
nt.number-theory
ho.history-overview
asked Sep 2, 2012 at 19:22
mathoverflow.net
33
votes
First use of term "Hilbert's Nullstellensatz"
ag.algebraic-geometry
ho.history-overview
asked May 2, 2021 at 15:40
mathoverflow.net
31
votes
When did Fubini's name get applied to the theorem without measures?
reference-request
multivariable-calculus
math-history
asked Nov 7, 2011 at 17:41
math.stackexchange.com
28
votes
Why is "h" the notation for class numbers?
nt.number-theory
ac.commutative-algebra
notation
asked Mar 4, 2010 at 6:27
mathoverflow.net
27
votes
Graduate program applications that require questionnaires and other non-letter material
soft-question
big-list
career
asked Dec 17, 2014 at 4:50
mathoverflow.net
27
votes
What are applications of commutativity theorems for rings?
ra.rings-and-algebras
commutative-rings
asked May 27, 2015 at 16:51
mathoverflow.net
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Top Answers
256
Consequences of the Riemann hypothesis
mathoverflow.net
222
Widely accepted mathematical results that were later shown to be wrong?
mathoverflow.net
119
Why it is important to write a function as sum of even and odd functions?
math.stackexchange.com
114
Why, historically, do we multiply matrices as we do?
math.stackexchange.com
112
Demystifying complex numbers
mathoverflow.net
98
Can you give an example of a complex math problem that is easy to solve?
math.stackexchange.com
79
Elementary results with p-adic numbers
mathoverflow.net
78
Where is number theory used in the rest of mathematics?
mathoverflow.net
78
In "splendid isolation"
mathoverflow.net
71
Mazur secret Bourbaki report "Analyse p-adique"
mathoverflow.net
71
There is a nice theory of quadratic forms. How about cubic forms, quartic forms, quintic forms, ...?
mathoverflow.net
66
Why is Galois correspondence intuitively plausible?
math.stackexchange.com
63
Are all algebraic integers with absolute value 1 roots of unity?
math.stackexchange.com
62
What are the advantages of phrasing results in terms of exact sequences and commutative diagrams?
mathoverflow.net
62
What's the "best" proof of quadratic reciprocity?
mathoverflow.net
61
Interesting results in algebraic geometry accessible to 3rd year undergraduates
mathoverflow.net
59
How were modular forms discovered?
mathoverflow.net
58
The Origin(s) of Modular and Moduli
mathoverflow.net
57
Cool problems to impress students with group theory
mathoverflow.net
55
Why do we care about $L^p$ spaces besides $p = 1$, $p = 2$, and $p = \infty$?
mathoverflow.net
53
Why are functional equations important?
mathoverflow.net
52
Why do we make such big deal about the 'unsolvability' of the quintic?
mathoverflow.net
52
Do you read the masters?
mathoverflow.net
51
sum of squares in ring of integers
mathoverflow.net
50
Is there a ring of integers except for Z, such that every extension of it is ramified?
mathoverflow.net
49
Irreducibility of $x^n-x-1$ over $\mathbb Q$
math.stackexchange.com
48
What is the p-adic valuation of a number?
mathoverflow.net
48
Intuitive explanation of Cauchy's Integral Formula in Complex Analysis
math.stackexchange.com
46
Collecting proofs that finite multiplicative subgroups of fields are cyclic
mathoverflow.net
46
Are submodules of free modules free?
mathoverflow.net
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