February 18 2001


Go for a Sunday walk in Santa Fe – Garret has uploaded five new photo galleries (five through nine) today!

And I thought he was joking about photographing the garbage can in front of Häagen Dasz

Here’s one for you, André.


Anyone out there want to do the proof of the Carathéodory theorem for me? Please?!

To be honest, this is more a motivational problem than a mathematical one, since you can find the proof in many books. I only need to adapt it to my needs. Let’s hope I’ll get it done tomorrow.

5 thoughts on “February 18 2001

  1. kris

    Anyone out there want to do the proof of the Carathéodory theorem for me? Please?!

    wie? der ist doch schin bewiesen. hab ich jedenfall in meinem konvexe-geometrie-hefter. oder war es bei affiner geometrie?

  2. Andrea Frick

    Satz von Carathéodory – der ist doch schon bewiesen.

    Ja, ich weiß, ich habe auch einen Beweis, und zwar für den Satz von Carathéodory für allgemeine Jordangebiete. Ich muß den Beweis nur aus zwei anderen zusammensetzen. Mathematisch ist das eigentlich kein Ding.

    Das Problem ist, daß ich seit einer Woche ein totales Motivationstief habe. Und das, obwohl die Arbeit, von ein paar Kleinigkeiten hier und da und ein paar Graphen fertig ist. Ich habe noch genau vier Wochen bis zu Abgabe… und überhaupt keinen Bock mehr.

    Aber morgen ist Montag, da wird alles besser!

    Danke für Deine Reaktion – ich hatte eigentlich gar nicht damit gerechnet, daß sich da ein Helfer melden würde!

  3. Max Smith

    I feel as if I were away for a time and a friend fell ill and recovered before I even knew she was ever ill at all. Andrea, I have forgotten most of the German I knew so well 12 years ago, but it wasn’t hard to figure out the general idea of Friday’s post. I only just saw it today, and was gratified to see what a quick recovery you made by Saturday.

    We should all be so resilient and self-determined. On Saturday, you composed what I now consider the most beautiful sentence ever created in the history of mankind:

    “I have decided that today is going to be a good day.”

    There is nothing more inspiring, powerful, and beautiful than human will. You may have written that sentence without any regard to it’s philosophical and moral implications, but it would be hard to find a more concise expression of what it means to be fully human, and not merely an animal controlled by instinct and circumstance.

    I wish you the best with your thesis, Andrea, though I know you’ll do just fine in any event, with or without anyone’s wishes. I’ll just leave you with a little bit from the Hagakure:

    “If (one) will just think about what he is to do for the day at hand, he will be able to do anything. If it is a single day’s work, one should be able to put up with it. Tomorrow, too, is but a single day.”


  4. Andrea Frick


    thank you for your kind words. They make my day! facehappy:

    Just to be clear here: The problem on Friday was not related to my thesis. It’s true that I haven’t been very motivated to work on it for the last week or so, but on Friday something happened that is wasting a lot of my time, is not my fault at all, but luckily has nothing to do with the well-being of my family and friends. It’s basically just bureaucracy, but I won’t go into details here. Maybe I’ll tell the story when it’s over. Right now all I can say is, I wish it hadn’t happened, and especially not right now when I’m busy with more important things. But life isn’t always fair.

    I love the quote from the Hagakure. I’m going to print it out and hang it over my desk, so I can see it every morning when I start work!

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