Harald Hanche-Olsen

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10,500 reputation

823

bio	website	math.ntnu.no/~hanche
	location	Trondheim, Norway
	age
visits	member for	1 year, 4 months
	seen	2 days ago
stats	profile views	1,144

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328 Answers

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39	If $e^A$ and $e^B$ commute, do $A$ and $B$ commute?
28	An example for a calculation where imaginary numbers are used but don't occur in the question or the solution.
20	I need a proof that a line cannot intersect a circle at three distinct points
19	A problem of J. E. Littlewood
16	Can there be a function that's even and odd at the same time?

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10,500 Reputation

+10	Find all $n\in\mathbb N$ such that by removing the last $3$ digits of $n$, $\sqrt[3]{n}$ is obtained.
+10	Simple matrix equation
+15	Does anyone recognize the function: ${ F }_{ \delta }(x)=\frac { 1 }{ 2\delta } \int _{ -\delta }^{ \delta }{ f(x+t)dt } $
+10	Can there be a function that's even and odd at the same time?

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1 Question

votes activity newest

2	Limits to the growth of the volume of a union of spheres

169 Tags

139 real-analysis × 47	51 functional-analysis × 25
90 linear-algebra × 20	51 sequences-and-series × 16
85 calculus × 33	47 complex-numbers × 7
68 complex-analysis × 30	44 general-topology × 20
53 homework × 30	39 exponential-function

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$Mathematics Stack Exchange$	Mathematics	10,500 rep	823
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