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Mason's user avatar
Mason's user avatar
Mason
  • Member for 4 years, 1 month
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6 votes
Accepted

Question about the Laplace-Bertrami operator

5 votes
Accepted

Different definitions of the archimedean property

5 votes
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Definition of tangent bundle.

4 votes
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If $F$ is differentiable at $x_0$, $f$ is continuous at $x_0$

4 votes

Reference for convergence of $\sum_{\mathbf k\in\mathbb Z^3\setminus\{0\}} \lvert\mathbf k\rvert^{-p}$

4 votes
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Intuition behind Schwarz theorem (partial derivatives)

4 votes
Accepted

Demonstrating equivalency between Runge-Kutta and Simpson's Rule

4 votes

Differential forms on $\mathbb{R}^n$

4 votes
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When is a function a Radon-Nikodym derivative?

4 votes

How can construction of the gamma function be motivated?

4 votes

How can the integral of the Dirac delta be defined if its domain is the space of test functions?

4 votes
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How to write conditional expectation as integral with respect to regular conditional distribution

4 votes
Accepted

$\mathbf{E} |\xi_n - \xi|^a \to 0 \Rightarrow \mathbf{E} \xi_n^a \to \mathbf{E} \xi^a$.

4 votes

Intuition behind Lagrange remainder term in Taylor's Theorem

4 votes
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Space analyticity of solution to heat equation

4 votes
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Zero function and normal derivative implies zero gradient

3 votes
Accepted

Fourth order finite difference

3 votes
Accepted

Convergence Rate and Newton's Method?

3 votes

Prove if $\lim_{k \rightarrow \infty} A_k = A$, then $\lim_{k \rightarrow \infty} A_k^{-1} = A^{-1}$

3 votes
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Exercise 4.4.1 Terence Tao

3 votes

Prove the following statements. (a) $\|fg\|_u \le \|f\|_u\|g\|_u$; (b) $\sup_{n\in N} \|f_n\|_u < \infty$

3 votes
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Second-order partials nonpositive at maximum

3 votes
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Show there exists a continuous function $0\leq f\leq 1$ vanishing off a rectangle.

3 votes
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I'm trying to prove $.\dot9 = 1$. What is wrong with this proof?

3 votes
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Can you prove that $\Bbb R$ is uncountable using the Lebesgue measure?

3 votes
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Aproximating a measurable function in $\mathcal{L}_p$ by a continuous (or differentiable function)

3 votes
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Approximating a measurable set by measurable rectangles

3 votes
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An example of a function which is non-negative and continuous on a closed and bounded subset of $\mathbb{R}^2$ which is not Riemann-integrable

3 votes
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Gronwall's Lemma intuition

3 votes
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Show, that if $f_n \rightarrow f$ and $f_n \rightarrow g$ is $\mu$-convergent, then $f=g$ almost everywhere on $X$

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