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Jun
22
comment Why isn't the Ito integral just the Riemann-Stieltjes integral?
But generally when we take the Ito Integral we usually imagine this extra variable of dependence as fixed right?
Jun
22
comment Why isn't the Ito integral just the Riemann-Stieltjes integral?
You just mean not differentiable a.e.? Also don't basically all the nice properties of the Riemann Integral which don't work for the Ito integral end up following from CoV in some way or another? I mean it's all the MVT in the end.
Jun
22
comment Why isn't the Ito integral just the Riemann-Stieltjes integral?
I know you can't apply CoV rule I said that, also if you're devonfangs I'll eat my shoe
Jun
22
asked Why isn't the Ito integral just the Riemann-Stieltjes integral?
Jun
21
comment Resources for learning mathematics for intelligent people?
Seriously though what numbers mean, peano axioms, you're going in the wrong direction. Get her a book on elementary algebra/trig and tell her to do all the problems, intuition and context is built up from the inside out
Jun
16
asked Hedging a long position-one period
Jun
10
comment How did we know to invent homological algebra?
I don't know any homological algebra so maybe this isn't what you're looking for. But I know looking at short exact sequences is sometimes a useful way to look at a normal subgroup of a group and the associated quotient group: $N\rightarrow G\rightarrow G/N$.
Jun
9
comment Factor Rings of Polynomial Rings.
Could you explain how you know $\varphi$ is a homomorphism?
Jun
4
accepted Understanding Conditional Expectation
Jun
4
comment Understanding Conditional Expectation
Ok cool yah you're right, although I think you mean $E[X_k]=\frac{1}{2}$, since the coin is biased.
Jun
4
asked Understanding Conditional Expectation
Jun
2
revised Manipulation of probability integrals
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Jun
2
revised Manipulation of probability integrals
added 203 characters in body
Jun
2
revised Manipulation of probability integrals
added 203 characters in body
Jun
2
revised Manipulation of probability integrals
added 61 characters in body
Jun
2
asked Manipulation of probability integrals
May
31
revised Showing that $f(x)=x\sin (1/x)$ is not absolutely continuous on $[0,1]$
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May
31
revised Showing that $f(x)=x\sin (1/x)$ is not absolutely continuous on $[0,1]$
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May
31
answered Showing that $f(x)=x\sin (1/x)$ is not absolutely continuous on $[0,1]$
May
30
revised Showing that $f(x)=x\sin (1/x)$ is not absolutely continuous on $[0,1]$
added 164 characters in body