randform

I may be a bit sensitive to this – but the music within shopping centers is usually first just ugly and secondly as it is usually in addition perpetual and repeating it makes me want to run out of the shopping centers right away. (The music in some of the shopping centers over here is actually in my view a torment to the employees and really a case for a health review!).

I know what I am talking about since I worked once in a gardening center in Germany, where the shopping music was also rather terrible which made working there almost unbearable.

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I saw the above version of the syllables kou and tse which sort of make up my last name in Kanji. There seems to be no single TZ. So Tse, which sounds almost like a very short tsy comes rather close. Is this true? Comments appreciated.

Anyways the meaning of the two syllables is NINE SEAS.

Who says all the unsolved math problems are difficult to phrase?
The Collatz conjecture can be phrased as a simple question: Start with a positive number. If the number is even take its half otherwise take 3 times the number plus 1. Now do this over and over again. The (yet unanswered) question is: will this process allways reach the number 1?
(from there the sequence of numbers gets into a boring 1, 4, 2, 1,… cycle)
The conjecture is “yes” and it has been shown to be true for numbers up to 10 * 2⁵⁸, but this is of course no big evidence.
The above image shows the numbers when starting with 353. It takes 125 iterations to reach 1 in this case and the biggest intermediate value is 9232.
There are some nice reformulations of the problem. One can for example state it as a a 2-tag system
The 2-tag sequence for 7 follows below
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The math and science building of Kyushu University is located at Hakosaki Campus which is directly in the entry lane of Fukuoka airport. Probably this is one reason, why the faculty of math will soon move to another bigger and newer campus which is located in the west of Fukuoka. However this campus is quite far out, so nobody really wants to move there. As I understand also other campuses located elsewhere in Fukuoka should go there.

As a matter of fact -may be I am wrong as I didnt really make a statistical analysis of that- but it seems that there is a general tendency to move university campuses, which were usually located in the center of a city to the outskirts of a city. And this is only partially due to the higher needs of space regarding more and more sophisticated experimental setups, people etc – as in principle – also given the usual high real estate costs in a cities center – one could try to find more space within the center of a city (remark: For the case of a particle accelerator this could indeed be difficult, but in general new experimental set-ups are not that big). In short -given that the above observation is true – one could see this as a society’s unwillingness to fund more space for universities in the center of cities – and thus it could display certain priorities of a society.

The above jet flying over Hakosaki campus which looks like tatooed from underneath has such a wild appearance and looked so gaga or silly that I was supposing that it might have been the private jet of a pop group like lets say beastie boys?? (just joking…:))

For no particular reason at all a figure showing all possible 120 permutations of 5 points: permutationsof5.pdf

In the current journal of our new employer, I found the above illustration. allthough I can not read the text around it, it seems to outline the interplay between pure and applied math.

High quality and well designed things are nice. Since these are usually more expensive (but not always!) it is good to know how to deal with bad design and how to live with it.

The previous sentence was meant as a kind of excuse, since I am feeling already bad that I criticise again a design over here (and Japan has actually a high culture of design!), however I feel these things have to be spoken out at one point.

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David Friedman has an ongoing series of ~60 seconds short movies on his blog ironic sans. I liked the above “60 seconds in the live of a commuter” a lot.

Just an update update about Pianist Nasseri’s last concert. Part of it -namely the Waltzes by Johannes Brahms– are now on youtube.

Since the recording is authorized by the artist, it wont probably be taken off like the video in this post (see the current discussion)

->Brahms 16 Waltzes, Op. 39. (Waltzes 1-5)
->Brahms 16 Waltzes, Op. 39. (Waltzes 6-11)

I am not sure, but it seems that it is forbidden to use a bike on major roads here in Japan. This may get a bit problematic in particular if the bike-lane layout is unfortunate as above, where it is hard to understand why the bus stop had to be made in such a way that the sidewalk got completely squeezed – especially given the fact that if a bus stops it occupies anyways half of the red roadway. It is actually quite easyy to get run over by a bike.

I found an even worse sidewalk/bikelane layout on a trip to the long penninsula which sits in front of Fukuoka (please see map for details). The biketrip there was intended as a refuge into nature – in particular I wanted to have a look at the open sea. But the trip turned out differently -the road to the penninsula’s tip was completely jammed due to heavy excursion traffic, the sidewalk very small and the sidewalk/street complex concealed with fences on both sides so that there was no way to leave the street. Given the heat (no shade) and the smell of the exhausts the biketrip became rather nightmarish.

So instead of having a look at the sea, I took the first exit of the road, which is the seaside park uminonakamichi and visited Marine World instead, which holds a shark (=HAI in german) basin. There was actually a diver in the basin and one wonders what makes people go in there voluntarily.

Some images of the shark basin at Uminonakamichi after the more

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