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20h
comment Traffic Flow via Characteristics
Why don't you draw the characteristics? The wave propagates in the direction of the characteristics.
20h
revised Traffic Flow via Characteristics
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20h
reviewed Close How can I prove that this function is absolutely continuous
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reviewed Close Geometrical place involving circles.
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reviewed Leave Open Function whose inverse is also its derivative?
21h
reviewed Close Give L structures A and B such that the following formula is true in A but not true in B.
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reviewed Close Prove that a non-cyclic group of order a² has exactly a+3 subgroups.
Apr
14
reviewed No Action Needed Solution to a stochastic differential equation
Apr
14
reviewed No Action Needed If $\mu(E_n) < \infty$ for all $n \in \mathbb{N}$ and $1_{E_n} \to f$ in $L^1$, then $f$ is a char. function of measurable set.
Apr
14
reviewed Close Sum from zero to -1
Apr
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reviewed Close Extensions of PID
Apr
14
reviewed Close Does $\int_a^b f(z)\ \overline{dz} = \int_a^b f(z)\ dz$?
Apr
14
reviewed Reviewed What are a,b, and c in $(3)/(x^3+ax^2+bx+c)$?
Apr
14
revised What are a,b, and c in $(3)/(x^3+ax^2+bx+c)$?
deleted 4 characters in body
Apr
14
reviewed Approve suggested edit on Solution to a stochastic differential equation
Apr
14
reviewed Approve suggested edit on Solve my probability doubt?
Apr
14
comment Show Green's function solves Poisson's equation
$H$ is called a fundamental solution. You might want to take a look at Fritz John book. To prove it classically, you'll have to separate the singularity at $x_0$ from the rest of the integral (using a ball of radius $\epsilon$), and then investigate the behavior in the limit. I've used the argument here
Apr
14
reviewed Leave Open Prove from the definition of differentiability that the function is differentiable at 2.
Apr
14
reviewed Close Coordinate System on Manifold
Apr
14
reviewed Close Prove the inequality $({1+\frac{a}b})^n$ + $(1+\frac{b}a)^n$ $\geq$ $2^{n+1}$