Mathematics
Harald Hanche-Olsen's user avatar
Harald Hanche-Olsen's user avatar
Harald Hanche-Olsen's user avatar
Harald Hanche-Olsen
  • Member for 11 years, 8 months
  • Last seen this week
Profile Activity
Stats
31,572
reputation
1.4m
reached
785
answers
2
questions
Communities
View all
About

Main interests: Partial differential equations, especially hyperbolic systems of conservation laws. See my home page if you want to know more.

Badges
View all badges
2
gold badges
56
silver badges
79
bronze badges
Top tags
View all tags
482
Score
152
Posts
19
Posts %
225
Score
53
Posts
7
Posts %
217
Score
69
Posts
9
Posts %
186
Score
45
Posts
6
Posts %
172
Score
75
Posts
10
Posts %
172
Score
57
Posts
7
Posts %
Top posts
View all questions and answers
All Questions Answers
Score Newest
answer
157
How do I convince my students that the choice of variable of integration is irrelevant?
Jan 21, 2014
answer
65
If $e^A$ and $e^B$ commute, do $A$ and $B$ commute for finite dimensional matrices?
Apr 2, 2013
answer
49
Self-Contained Proof that $\sum\limits_{n=1}^{\infty} \frac1{n^p}$ Converges for $p > 1$
Apr 11, 2012
answer
44
Of any 52 integers, two can be found whose difference of squares is divisible by 100
Dec 12, 2013
answer
42
Matrix raised to 14th power
Dec 1, 2013
answer
34
Can there be a function that's even and odd at the same time?
Jun 17, 2012
answer
33
Why Do The Axioms of Euclidean Geometry Not Need To Include the Definition of Space?
Jan 23, 2015
answer
29
An example for a calculation where imaginary numbers are used but don't occur in the question or the solution.
Oct 31, 2012
answer
26
How many times are the hands of a clock at $90$ degrees.
Dec 14, 2013
answer
25
I need a proof that a line cannot intersect a circle at three distinct points
Mar 1, 2012
Top network posts
View all network posts
107
Probabilistic proofs of analytic facts
75
Wrong (hyper-)references after resetting chapter counter
68
Why is an elliptic curve a group?
63
How to monitor file access for an OS X application?
60
What's a good way to write "x does not divide y"?

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.