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Digests
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
63
votes
Why is an elliptic curve a group?
ac.commutative-algebra
elliptic-curves
asked Nov 26, 2009 at 4:54
mathoverflow.net
28
votes
Raggedleft paragraph in a table
tables
horizontal-alignment
asked Nov 2, 2010 at 16:05
tex.stackexchange.com
17
votes
Why is a subscript set in roman font placed differently
math-mode
luatex
stix
asked Apr 10, 2018 at 12:03
tex.stackexchange.com
15
votes
Integrable solutions to an elliptic PDE on divergence form have a definite sign
ap.analysis-of-pdes
asked Feb 9, 2010 at 0:48
mathoverflow.net
12
votes
Is this a known compactification of the natural numbers?
gn.general-topology
asked Mar 16, 2010 at 17:24
mathoverflow.net
10
votes
How to make persistent changes to math parameters
luatex
fontspec
stix
asked Aug 10, 2017 at 13:06
tex.stackexchange.com
8
votes
How can \ifx\\\\ be false?
conditionals
debugging
primitives
asked Oct 10, 2013 at 8:09
tex.stackexchange.com
7
votes
`\big\lVert` is too big
stix
asked Aug 6, 2017 at 17:31
tex.stackexchange.com
7
votes
How big can the Hausdorff dimension of a function graph get?
gt.geometric-topology
dimension-theory
hausdorff-dimension
asked May 8, 2010 at 21:03
mathoverflow.net
6
votes
You don't exist, go away!
lion
open-directory
asked Feb 27, 2012 at 7:11
apple.stackexchange.com
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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.
math.stackexchange.com
24
Symbol for "care of" (c/o)
tex.stackexchange.com
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