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Mathmo123

United Kingdom

PhD student in algebraic number theory.

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Top Questions
31 votes

For integers $a \ge b > 1$ is $f(a,b) = a^b + b^a$ injective?

nt.number-theory asked Aug 14 '14 at 17:24
mathoverflow.net

28 votes

For integers $a\ge b\ge 2$, is $f(a,b) = a^b + b^a$ injective?

elementary-number-theory diophantine-equations asked Aug 5 '14 at 10:57
math.stackexchange.com

9 votes

Why does taking completions make number fields simpler?

number-theory algebraic-number-theory intuition p-adic-number-theory asked Dec 1 '14 at 18:41
math.stackexchange.com

9 votes

Varying column and row width in tikz-cd

tikz-cd asked Mar 6 '15 at 14:50
tex.stackexchange.com

6 votes

Extension of $\mathbb Q$ which splits only at primes in $S$

nt.number-theory algebraic-number-theory asked Feb 23 '17 at 21:13
mathoverflow.net

6 votes

Endomorphism algebras of restricted representations

gr.group-theory rt.representation-theory galois-representations division-algebras asked Jul 26 '17 at 12:05
mathoverflow.net

6 votes

For $p\ge3$ there is no extension of $\mathbb Q_p$ with Galois group $S_4$

algebraic-number-theory p-adic-number-theory local-field asked Jan 4 '15 at 17:02
math.stackexchange.com

6 votes

The mod $p$ Galois representation of the Frey curve is unramified away from $2, p$

algebraic-number-theory elliptic-curves galois-representations asked Feb 9 '15 at 14:40
math.stackexchange.com

5 votes

Semisimplicity of the induced representation of an irreducible representation

abstract-algebra group-theory representation-theory asked Mar 3 '16 at 12:47
math.stackexchange.com

5 votes

How to visualise the Killing form of a Lie algebra

abstract-algebra lie-algebras asked Aug 7 '14 at 0:54
math.stackexchange.com

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Top Answers
97
Free throw interview question
math.stackexchange.com

67
Past open problems with sudden and easy-to-understand solutions
math.stackexchange.com

28
Can a number have infinitely many digits before the decimal point?
math.stackexchange.com

28
If an inequality is true for all natural numbers, is it necessarily true for all real numbers inbetween?
math.stackexchange.com

26
Function with infinitely many right inverses?
math.stackexchange.com

22
Is every subgroup of a normal subgroup normal?
math.stackexchange.com

20
Demystifying modular forms
math.stackexchange.com

19
Theorem: the first positive number to have 500 divisors has to be even.
math.stackexchange.com

18
How can I prove $\sqrt{2}^{\sqrt{2}^{\sqrt{2}^{\sqrt{2}^{\sqrt{2}…}}}}=2$
math.stackexchange.com

17
What is the probability that I roll a 2 before I roll two odd numbers?
math.stackexchange.com

14
Let F be a field of order 32. Show that the only subfields of F are F itself and {0,1}.
math.stackexchange.com

14
What is Representation Theory?
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13
In how many ways can the group $\mathbb Z_5$ act on the set $\{1,2,3,4,5\}$ $?$
math.stackexchange.com

13
Why are people more interested in the Riemann hypothesis than Goldbach's conjecture?
math.stackexchange.com

11
The high power integral
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11
The sum of two irrational square roots
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11
Primes of form $a^2 + 24b^2$
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11
Isomorphic quotient groups $\frac{G}{H} \cong \frac{G}{K}$ imply $H \cong K$?
math.stackexchange.com

10
Existence of Open Covers
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10
Solving a cubic polynomial equation.
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10
Differentiate $ f(x) = \frac 2x $ from first principles
math.stackexchange.com

10
A few questions on the Gaussian integers
math.stackexchange.com

10
The sum of two algebraic integers of degree $2$ is an algebraic integer of degree $2$ or $4$, right?
math.stackexchange.com

9
Are there prime numbers not irreducible in $\mathcal{O}_{\mathbb{Q}(\sqrt{577})}$?
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9
Why doesn't this converge?
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9
Can the winding number be infinite?
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9
When does $P(A|B) = P(B|A)$?
math.stackexchange.com

9
$x^5+x-1=0\;,\;x\in\mathbb{R}$
math.stackexchange.com

9
Why is the polynomial $2x^2 + 4$ reducible over $\mathbb{Z}$
math.stackexchange.com

8
In what quadratic or quartic integer ring is a prime of the form $a^4 + 4^b$ guaranteed to split?
math.stackexchange.com

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