Mathematics
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Dietrich Burde
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4,123 Answers

Votes Activity Newest
73
If I know the order of every element in a group, do I know the group?
May 24 '15 at 16:22
38
Complete classification of the groups for which converse of Lagrange's Theorem holds
Feb 14 '17 at 14:48
36
Let $A=(a_{ij})$ be an $n\times n$ matrix. Suppose that $A^2$ is diagonal. Must $A$ be diagonal?
Apr 12 '18 at 11:28
35
Prime numbers the rank of which is also a prime.
Aug 24 '17 at 13:20
33
Normal subgroups of dihedral groups
Sep 5 '13 at 12:13
32
Do commuting matrices share the same eigenvectors?
Apr 9 '15 at 14:47
28
If the field of a vector space weren't characteristic zero, then what would change in the theory?
Jun 30 '17 at 14:22
22
Show how to calculate the Riemann zeta function for the first non-trivial zero
Sep 11 '13 at 7:48
21
All Sylow $p$-subgroups of $GL_2(\mathbb F_p)$?
Nov 17 '16 at 19:54
21
What is the correct spelling of Paul Erdős's name?
Oct 6 '13 at 19:01
20
Find some digits of $17!$
Feb 28 '19 at 19:12
19
Simple theorems that are instances of deep mathematics
Apr 4 '17 at 18:35
19
Finite groups as subgroups of dihedral groups
Sep 9 '16 at 18:07
18
Computing the Galois group of polynomials $x^n-a \in \mathbb{Q}[x]$
Dec 23 '16 at 14:56
18
Subgroups of $D_4$
Sep 16 '16 at 15:31
18
Would proof of Legendre's conjecture also prove Riemann's hypothesis?
Sep 3 '13 at 8:45
17
Book recomendation for Elliptic-curve cryptography
Dec 19 '17 at 17:32
17
How do I make this simple proof better (and more correct?)
Sep 28 '14 at 15:41
16
Largest multiple of $7$ lower than some $78$-digit number?
Mar 18 '19 at 9:33
16
Is there any perfect squares that are also binomial coefficients?
May 2 '14 at 12:07
16
$ABAB=0_{n\times n}$, then must $BABA$ be $0_{n\times n}$?
Jan 5 '14 at 16:49
15
Why is $ (2+\sqrt{3})^n+(2-\sqrt{3})^n$ an integer?
Aug 25 '16 at 10:19
14
Conjecture: All but 21 non-square integers are the sum of a square and a prime
Jun 7 '20 at 19:01
14
When is the Killing form null?
Dec 18 '13 at 15:46
14
How to find a Cartan subalgebra of $so(3)$.
Jul 7 '16 at 9:20
14
Why Zariski topology is not Hausdorff
Dec 17 '14 at 10:00
13
Does the existence of a mathematical object imply that it is possible to construct the object?
Jun 5 '18 at 11:33
13
Which groups act freely on $S^n$?
Dec 14 '15 at 21:02
13
What's so special about characteristic 2?
Dec 13 '15 at 9:10
13
Group of an order 385
Sep 1 '15 at 8:15
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