Adrián Barquero

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123 Answers

newest activity votes
7
Show $\zeta_p \notin \mathbb{Q}(\zeta_p + \zeta_p^{-1})$
5
Intersection of smooth projective plane curves
2
Multivariate polynomials have infinitely many zeroes
4
Why is the localization at a prime ideal a local ring?
2
$a^2-b^2 = x$ where $a,b,x$ are natural numbers
1
Problem with the Dirichlet Eta Function
1
Determining conjugates of ${\sqrt 5 + \sqrt 6 }$ over $\mathbb{Q}$
0
Verifying a subring of R?
3
Trying to solve $x^2 – 11x = y^2$ knowing that $x$ and $y$ are integers.
3
Complex Analysis textbook - specific criteria
2
Let $f(z)$ be entire and $|f(w)-f(z)|\le R|w-z|$ for arbitrary $w, z$ in C and $R>0$. Prove that $f(z)$ is a polynomial of degree less than $2$.
1
Proving $|x|$ is a norm in $\mathbb {R}^n$
0
Primes in Gaussian Integers
4
How do I find $\frac{\text{d}}{\text{d}z}\left(z\bar{z}\right)$?
2
The transcendence degree of a separably generated field extension K/L
2
Need hint: Prove that $r = a (\sin t) + b (\cos t)$ is a circle, where $ab \neq 0$
1
a problem on ideal
3
Being maximal ideal follows from being a kernel
2
A Complex Inequality
13
Calculus proof for the area of a circle
1
Express real number in exponential form
11
Why $ \lim_{n \rightarrow \infty}\frac{(5n^3-3n^2+7)(n+1)^n}{n^{n+1}(n+1)^2} =5e$?
6
About algebraic integer and algebraic number
1
Infinite descent
2
number of field homomorphisms from an extension field of Q to C
3
Show that the curve $y^2 = x^3 + 2x^2$ has a double point, and find all rational points
2
Expanding fractions as powers of $z$
0
If $|f(z)| \geq |g(z)|$ for $z \in D$ and $E = \{ z \in D : |f(z)| =|g(z)| \}$ has a limit point, then $E=D$.
3
Prove that curve lies on a cone?
2
Finding a basis for the kernel and range of $T$
1 2 3 4 5