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Jonas Teuwen

Nijmegen, Netherlands

https://www.linkedin.com/in/jonasteuwen/

Researcher at the Diagnostic Image Analysis Group at the Radboud university medical center.

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Top Questions
53 votes

Lemma/Proposition/Theorem, which one should we pick?

soft-question asked Mar 7, 2011 at 22:31
math.stackexchange.com

53 votes

Lebesgue measurable but not Borel measurable

measure-theory lebesgue-measure examples-counterexamples asked Feb 4, 2011 at 17:15
math.stackexchange.com

43 votes

Vitali-type set with given outer measure

measure-theory asked Dec 16, 2010 at 21:50
math.stackexchange.com

40 votes

Is Banach-Alaoglu equivalent to AC?

functional-analysis set-theory axiom-of-choice asked May 14, 2012 at 23:34
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39 votes

Intuitive explanation of the tower property of conditional expectation

probability probability-theory intuition conditional-expectation asked May 26, 2011 at 17:37
math.stackexchange.com

36 votes

Crafty solutions to the following limit

calculus limits asked Nov 8, 2011 at 22:39
math.stackexchange.com

30 votes

Dynamically size arrow \mapsto in function definition

math-mode symbols horizontal-alignment asked Oct 19, 2011 at 11:17
tex.stackexchange.com

24 votes

Span formula over multiple pages.

equations amsmath asked Apr 5, 2011 at 16:17
tex.stackexchange.com

21 votes

Why does Mathematica give the wrong answer when integrating?

calculus-and-analysis numerical-integration bugs special-functions asked Mar 8, 2012 at 19:31
mathematica.stackexchange.com

19 votes

Quantum mechanics for mathematicians

reference-request physics mathematical-physics book-recommendation quantum-mechanics asked May 13, 2011 at 16:53
math.stackexchange.com

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Top Answers
81
If $f_k \to f$ a.e. and the $L^p$ norms converge, then $f_k \to f$ in $L^p$
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40
Good 1st PDE book for self study
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37
When can a sum and integral be interchanged?
math.stackexchange.com

31
Seeking a layman's guide to Measure Theory
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22
Characterization of Almost-Everywhere convergence
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21
What is the product of a Dirac delta function with itself?
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20
Negative 1 to the power of Infinity
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19
Show that a continuous function has a fixed point
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18
Is the closedness of the image of a Fredholm operator implied by the finiteness of the codimension of its image?
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16
How does the existence of a limit imply that a function is uniformly continuous
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15
Does a continuous and 1-1 function map Borel sets to Borel sets?
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15
Textbook that brings together linear algebra and PDEs?
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14
Proof: Series converges $\implies $ the limit of the sequence is zero
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12
What is the double multiplication sign for?
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11
Learning algebra and harmonic analysis
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11
Questions about Bochner integral
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11
The $L^1$ convergence of $f(x - a_n) \to f(x)$
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10
Pointwise but not uniform convergence of a Fourier series
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10
What does Trotter Product Formula mean?
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10
Does the sum of reciprocals of primes converge?
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10
Question regarding Weierstrass M-test
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10
Prove that the limit of $\sin n$ as $n \rightarrow \infty$ does not exist
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10
Does $ \int_0^{\infty}\frac{\sin x}{x}dx $ have an improper Riemann integral or a Lebesgue integral?
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10
integrals inequalities
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9
How to prove that continuous functions are Riemann-integrable?
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9
Proving or disproving statements related to convergent and absolutely convergent series
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8
Are polynomials dense in Gaussian Sobolev space?
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8
Polynomial and spectrum of a Operator .
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8
Suppose $\phi$ is a weak solution of $\Delta \phi = f \in \mathcal{H}^1$. Then $\phi\in W^{2,1}$
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8
Example of a non measurable function!
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