Mathematics
Profile Activity
Meta user
Network profile
Ege Erdil
Summary Answers Questions Tags Badges Bookmarks Bounties Reputation All actions

442 Answers

Votes Activity Newest
33
Calculate $\int_{0}^{1} (x-f(x))^{2016} dx$, given $f(f(x))=x$.
May 8 '16 at 14:22
32
Are there infinitely many primes $p$ such that $p-2$ and $p+2$ are composite?
Oct 5 '16 at 22:20
24
The square roots of different primes are linearly independent over the field of rationals
May 28 '16 at 20:17
22
Elementary solution of exponential Diophantine equation $2^x - 3^y = 7$.
Sep 25 '16 at 21:51
16
Why does “solvability” for groups suggest something about the solution of polynomials?
Apr 18 '17 at 21:35
15
Why is $ (2+\sqrt{3})^n+(2-\sqrt{3})^n$ an integer?
Aug 25 '16 at 10:34
14
an odd degree polynomial with cyclic Galois group has root all real
May 2 '18 at 3:59
11
Does there exist a basis for the set of $2\times 2$ matrices such that all basis elements are invertible?
Nov 5 '16 at 16:02
11
is $\sqrt[n]{n!}$ ever an integer?
Sep 18 '16 at 0:52
11
Is the difference of two irrationals which are each contained under a single square root irrational?
Aug 21 '16 at 18:22
10
Find a polynomial over $\mathbb{Q}$ with a given Galois group.
Apr 24 '17 at 19:17
10
How many elements of $S_9$ commute with $(123)(4567)$?
Feb 6 '17 at 9:22
9
Is $\frac{1010103010101}9$ prime or composite?
May 6 '16 at 20:11
8
Are there unsolved indeterminate limits?
May 12 '20 at 18:18
8
Is $x^{2^{n+1}} - x^{2^n} + 1$ is irreducible over the integers for all $n$?
May 4 '17 at 2:17
8
If $[\overline F : F] = \infty$, does $F$ have extension of degree $n$ for any $n \geq 1$?
Feb 1 '17 at 15:15
8
Galois group of $f(x^2)$
Oct 9 '16 at 14:29
8
How to factorize $5$ in $\mathbb{Z}[\root 3 \of 2]$?
Sep 12 '16 at 21:48
8
Product of one minus the tenth roots of unity
Aug 31 '16 at 6:30
8
Prove that $\sin x \cdot \sin (2x) \cdot \sin(3x) < \tfrac{9}{16}$ for all $x$
May 29 '16 at 12:27
8
Why does the name “epimorphism” refer to a surjective homorphism?
May 14 '16 at 18:12
7
If $f$ increasing, analytic on $\mathbb{R}$ and $\lim_{x\to +\infty}f(x)=1$, does it follows that $\lim_{x\to +\infty}f'(x)=0$?
May 1 '20 at 13:43
7
On the formula, $\pi = \frac 5\varphi\cdot\frac 2{\sqrt{2+\sqrt{2+\varphi}}}\cdot\frac 2{\sqrt{2+\sqrt{2+\sqrt{2+\varphi}}}}\cdots$
Apr 27 '20 at 15:13
7
Automorphisms of $GL_n(K)$, and $SL_n(K)$
Oct 1 '17 at 12:05
7
Irreducibility of polynomials in two variables
Mar 1 '17 at 13:41
7
Why is $\mathbb Z[x]/(2x-1)$ not a field?
Feb 21 '17 at 5:56
7
If $\gcd(x,y)=1$, and $x^2 + y^2$ is a perfect sixth power, then $xy$ is a multiple of $11$
Feb 15 '17 at 2:27
7
Any element of $\mathbf{Z}[\xi]$ is congruent to an integer modulo $(1-\xi)^2$ if multiplied by a suitable power of $\xi$
Sep 23 '16 at 21:21
7
Is $x^2+x-1$ squarefree?
Sep 19 '16 at 18:12
7
Find all the units of the ring $R=\mathbb{R}^2$
Sep 18 '16 at 13:04
1
2 3 4 5
…
15