1,315 reputation
315
bio website
location
age 34
visits member for 1 year, 11 months
seen yesterday

Aug
2
comment Video lectures of algebraic geometry (Hartshorne, Shafarevich, … )
Harpreet Bedi has nice videos here.
Jul
4
revised If $Du=0$ a.e. , does $u=c$ a.e.?
Added LaTeX, improved the message.
Jul
4
suggested suggested edit on If $Du=0$ a.e. , does $u=c$ a.e.?
Jun
10
comment Show that $|z+1|\le|z+1|^2 +|z|$ for all $z \in \mathbb{C}$
I think it's badly written : "If $1\leqslant |z+1|$, then $|z+1|\leqslant|z+1|^2$ hence $|z+1|\leqslant |z+1|^2+|z|$, now I must show that the inequality is also true when $|z+1|<1$, but this is where I'm stuck."
Jun
10
revised Prove $\int_0^{\infty}\! \frac{\mathbb{d}x}{1+x^n}=\frac{\pi}{n \sin\frac{\pi}{n}}$ using real analysis techniques only
"du" missing in last integral
Apr
6
revised Show that for triangle ABC, with complex numbers for the coordinates, that we have the following equation
Removed irrelevant tags
Apr
6
suggested suggested edit on Show that for triangle ABC, with complex numbers for the coordinates, that we have the following equation
Mar
3
answered If $f$ is holomorphic and $\,f'' = f$, then $f(z) = A \cosh z + B \sinh z$
Jan
25
comment Question on relative homology
We have $\{0\}\subsetneq\mathrm{Ker}\partial\subset H_m\left(\varphi^{c+\varepsilon},\varphi^{c-\varepsilon}\right)$.
Jan
16
answered Bounded Complex Function
Jan
5
suggested suggested edit on compute limit (no l'Hospital rule)
Dec
18
revised Number of unitary homomorphisms $\phi \ : \ \mathbb{Z}[X]/(X^3+3X+5) \longrightarrow \mathbb{R}$
Corrected spelling, LaTeX fixed
Dec
18
suggested suggested edit on Number of unitary homomorphisms $\phi \ : \ \mathbb{Z}[X]/(X^3+3X+5) \longrightarrow \mathbb{R}$
Dec
11
answered Cauchy integral formula, but singularities not inside and on the contour $C$
Dec
4
comment Analytic function or not?
A complex analytic function is usually defined on an open subset of $\mathbb{C}$.
Dec
4
suggested suggested edit on proving $f^{-1}(C\cup D)=f^{-1}(C)\cup f^{-1}(D)$
Nov
30
revised How do I prove that $\lim_{n\to+\infty}\frac{\frac{1}{a_{1}}+\frac{1}{a_{2}}+\cdots+\frac{1}{a_{n}}}{\sqrt{n}}=?$
Corrected title.
Nov
30
suggested suggested edit on How do I prove that $\lim_{n\to+\infty}\frac{\frac{1}{a_{1}}+\frac{1}{a_{2}}+\cdots+\frac{1}{a_{n}}}{\sqrt{n}}=?$
Nov
30
answered Question on relative homology
Nov
30
comment Prove $f(x,y) = xy/(x^2 + y^2)$ is continuous everywhere except $(0,0).$
The inverse of $h(0,0)$ is undefined, $h(0,0)$ is just equal to $0$.