Alexander Osorio

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362 reputation
17
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visits member for 1 year, 6 months
seen Jun 16 at 20:05

Jul
2
awarded  Curious
Feb
9
asked Why $Sym^{n}(\mathbb{C})=\mathbb{C}^{n}$ or $Sym^{n}([0,1])=\Delta^{n}$ is a $n$-simplex?
Feb
6
asked Proof: $C(X×Y)=C(X)⊗C(Y)$
Jan
29
awarded  Yearling
Jul
9
asked Using the Casorati-Weierstrass theorem.
Jul
9
asked show that a polynomial has no zeros in the first quadrant of the complex plane
Jun
30
accepted Constant function and Argument Principle
Jun
28
comment Constant function and Argument Principle
Why do you say that: z lies in the unbounded component of $h(C)$?. And When do you use the hypothesis: $ \operatorname{Re} h(z)= (\operatorname{Im} h(z))^2$?
Jun
27
revised Constant function and Argument Principle
added 14 characters in body
Jun
27
revised Constant function and Argument Principle
added 9 characters in body
Jun
27
revised Constant function and Argument Principle
added 9 characters in body
Jun
27
comment Constant function and Argument Principle
Yes Potato $C\subset D$.
Jun
27
asked Constant function and Argument Principle
Jun
7
comment Prove $SO(3)$, the group of rotations of $\mathbb{R}^3$, is not homotopically equivalent to $S^1\times S^2$
but in general π1(X×Y) = π1(X)×π1(Y) is not true.
Jun
7
asked Prove $SO(3)$, the group of rotations of $\mathbb{R}^3$, is not homotopically equivalent to $S^1\times S^2$
May
13
accepted Let $W$ be a Wiener process and $X(t):=W^{2}(t)$ for $t\geq 0.$ Calculate $\operatorname{Cov}(X(s), X(t))$.
May
12
comment Let $W$ be a Wiener process and $X(t):=W^{2}(t)$ for $t\geq 0.$ Calculate $\operatorname{Cov}(X(s), X(t))$.
The main task is to compute E(X(s).X(t))=E(W²(s).W²(t))
May
12
comment Let $W$ be a Wiener process and $X(t):=W^{2}(t)$ for $t\geq 0.$ Calculate $\operatorname{Cov}(X(s), X(t))$.
One way would be to show that w² has independent increments. but I do not know if that is true.
May
12
asked Let $W$ be a Wiener process and $X(t):=W^{2}(t)$ for $t\geq 0.$ Calculate $\operatorname{Cov}(X(s), X(t))$.
May
8
awarded  Caucus