KConrad's user avatar
KConrad's user avatar
KConrad's user avatar
KConrad
  • Member for 14 years, 2 months
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17 votes

History of the Frobenius Endomorphism?

17 votes
Accepted

Question on a crucial lemma in Euler's approach to Fermat's Last Theorem for $n=3$

17 votes
Accepted

What is Weber's mistake about Hilbert's 12th problem?

16 votes

1+2+3+4+… and −⅛

16 votes

Where can I find a rigorous proof of this statement in the literature? : $\sum_{n=1}^\infty \frac{\mu(n)}{n} = 0$

16 votes

The modular arithmetic contradiction trick for Diophantine equations

16 votes
Accepted

An Euler-proof that cannot be repaired?

16 votes
Accepted

Is there a choice-free proof that a Euclidean domain is a UFD?

16 votes

Newton and Newton polygon

16 votes

Quick proof of the fact that the ring of integers of $\mathbb Q(\zeta_n)$ is $\mathbb Z[\zeta_n]$?

16 votes
Accepted

The interrelationship problem of modern mathematics – How to deal with it in first year graduate courses?

16 votes

Analog to the Chinese Remainder Theorem in groups other than Z_n.

16 votes

Do the empty set AND the entire set really need to be open?

16 votes
Accepted

Help wanted with Chebotarev condition in characteristic 2

15 votes

What would you want to see at the Museum of Mathematics?

15 votes
Accepted

Converse to basic result on prime decomposition

15 votes

Is there an intuitive explanation for an extremal property of Chebyshev polynomials?

15 votes
Accepted

Is there a purely algebraic criterion which characterizes the real algebraic numbers?

15 votes

Proofs by induction

15 votes

Different ways of thinking about the derivative

15 votes

Ways to prove the fundamental theorem of algebra

15 votes

Special rational numbers that appear as answers to natural questions

15 votes
Accepted

Automorphisms of $\mathbb C_p$

15 votes

Historical (personal) examples of teaching-based research

15 votes
Accepted

Are there Carlitz analogues of quadratic residues and reciprocity?

15 votes

Are there any "related rates" calculus problems that don't feel contrived?

15 votes
Accepted

Automorphisms of $GL_n(\mathbb{Z})$

15 votes

Noteworthy, but not so famous conjectures resolved recent years

15 votes

$x^2+7y^2=2^n$ and sums of four squares

15 votes
Accepted

Quotients of number fields by certain prime powers

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