Stack Exchange

Harald Hanche-Olsen

Trondheim, Norway

https://folk.ntnu.no/hanche/

Main interests: Partial differential equations, especially hyperbolic systems of conservation laws. See my home page if you want to know more.
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Top Questions
Top Answers
155
How do I convince my students that the choice of variable of integration is irrelevant?
math.stackexchange.com

102
Probabilistic proofs of analytic facts
mathoverflow.net

89
Quotes in LaTeX ?
tex.stackexchange.com

69
Wrong (hyper-)references after resetting chapter counter
tex.stackexchange.com

65
If $e^A$ and $e^B$ commute, do $A$ and $B$ commute?
math.stackexchange.com

61
Favorite popular math book
mathoverflow.net

61
How to monitor file access for an OS X application?
apple.stackexchange.com

60
What's a good way to write "x does not divide y"?
tex.stackexchange.com

57
Why does the Gamma-function complete the Riemann Zeta function?
mathoverflow.net

55
What is convolution intuitively?
mathoverflow.net

52
Favorite popular math book
mathoverflow.net

49
Self-Contained Proof that $\sum\limits_{n=1}^{\infty} \frac1{n^p}$ Converges for $p > 1$
math.stackexchange.com

45
How to raise a subscript?
tex.stackexchange.com

44
Of any 52 integers, two can be found whose difference of squares is divisible by 100
math.stackexchange.com

44
What is the difference between Fragile and Robust commands? When and why do we need \protect?
tex.stackexchange.com

43
Matrix raised to 14th power
math.stackexchange.com

36
Mathematical symbol for disjoint set union
tex.stackexchange.com

35
Famous mathematical quotes
mathoverflow.net

33
Why Do The Axioms of Euclidean Geometry Not Need To Include the Definition of Space?
math.stackexchange.com

32
Visualization of Riemann–Stieltjes Integrals
mathoverflow.net

31
Can there be a function that's even and odd at the same time?
math.stackexchange.com

30
How to define tuples?
mathoverflow.net

30
Example of continuous function that is analytic on the interior but cannot be analytically continued?
mathoverflow.net

29
An example for a calculation where imaginary numbers are used but don't occur in the question or the solution.
math.stackexchange.com

29
Roots of truncations of $ e^x - 1$
mathoverflow.net

27
What are the worst notations, in your opinion?
mathoverflow.net

27
Strange symbol seen in an article
tex.stackexchange.com

25
I need a proof that a line cannot intersect a circle at three distinct points
math.stackexchange.com

25
How many times are the hands of a clock at $90$ degrees.
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24
Symbol for "care of" (c/o)
tex.stackexchange.com

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