George's Home Page

Web Name: George's Home Page






Stuff of Jiří Lebl (or George)

Simplicity is a virtue. And so there isn't much stuff here. What is here has a tendency to be somewhat out of date.See also my OSU (work) page,which is likely to be more current.Or just see my CV.

I guess this should be about me. I was born in Prague (CZ) and live inStillwater, Oklahoma.After beingapostdoc in the Math department at University of Illinois (UIUC), in the middle of cornfields in Urbana,I was a Teaching VisitoratUniversity of California at San Diego (UCSD), then a postdoc atUniversity of Wisconsin-Madison (UW).Now I am faculty atOklahoma State University (OSU).Here is my GPG key if you're into that kind of thing (though I'm not really, so it could have happened that I don't remember my passphrase anymore).Sometimes I write stuff on my blog.I used to write my blog onadvogatobut you can't do latex math there. I used to write a blog before it was called a blog.

I got my PhD from UCSD in the spring of 2007.Here is the thesis. There's a pdf of the thing and alink to lulu if you really really must go kill some trees. If you really wantsomething useless to read, see my masters thesis from SDSU, 2003.Better to checkmy published papers at my OSUpage orsee my papers on arXiv.I've also written a free onlinedifferential equations textbook(introductory undergraduate level),a free onlinereal analysis textbook(introductory undergraduate level), a set of notes for a minicrouse onseveral complex variables using Hermitian forms,and a semester long introduction to several complex variables.

In a past life I've worked forEazel, before it went horriblybankrupt.I've spent a summer working forRed Hat.I've also done some software consulting in lab automation.I'm a big supporter of free softwareand if I do work on freesoftware it is mostly on GNOME, or related.Nowadays my coding is restricted mostly to the Geniusmathematics package or to math experimentation.

Here is some of the stuff I wrote that is currently maintained and is ofgeneral interest:Genius Mathematics Tool -Very capable free software mathematics tool. A cross between Mathematica,Maple, and Matlab in some ways, but not as capable.I'm always looking for help with this.Notes on Diffy Qs: Differential Equations for Engineers -Undergraduate differential equations textbook freely available online (and as a cheap paperback).Basic Analysis: Introduction to Real Analysis -First course in real analysistextbook freely available online (and as a cheap paperback).Guide to Cultivating Complex Analysis: Working the Complex Field -First graduate course in complex analysistextbook freely available online (and as a cheap paperback).Tasty Bits of Several Complex Variables -A semester-long course on introductory Several Complex Variables from a more traditional point of view.Freely available online.Hermitian Forms Meet Several Complex Variables -half-semester course in CR geometry using Hermitian forms,freely available online.GOB -GObject Builder, a preprocessor that spits out GObject C code so you don'thave to write 10 tons of boilerplate code for every class you wish to define,and thus avoids lots of bugs and headaches.buildpdftexwatch -A zsh script to automateediting a document and running pdflatex. Just run"buildpdftexwatch file" if your LaTeX file is called file.tex.The script will run xpdf and vim. When yousave in vim, pdflatex runs andxpdf reloads the pdf. You might have to probably edit the script to fit yourneeds, I didn't try to make this user friendly.buildsketchwatch -Like the above script but for sketch and pdflatex. Works as above but on, andruns sketch with the -T option to create a template. If sketch is successfulruns pdflatex and displays result in xpdf. You might have to probably edit thescript to fit your needs, I didn't try to make this user friendly.quickpres -A presentation tool script for scrolling mathematics lectures using a web browser created for online courses using zoom. Presentations are created in a simplemarkdown-like format and converted using the script to html which is then used in a browser to show the presentation.WeBWorK Story Problem Maker is a way toquickly generate simple WeBWorK problems with draggable proofs, radio buttons, check buttons, and simple number and formula input,without having to type all the boilerplate. I used it to quickly create homework for my undergraduate real analysis class.The perl code for this is in my webwork repository,where you can also find the real analysis problems I created with it.

Pictures and galleries and that sort of thing:Our newer gallerySort of a private gallery with our sort of photo album (though most comments on there are in Czech)My brother's page with pictures from my wedding April 2003

Some old pages, probably not of interest any more are:Math hacks - A few math hacks forrandom things. Of interest could be the arithmetic operations written in sed (decimal arithmetic usingregular expressions). But there are some other things very out of date Linux pagePictures from Linux Expo '99Pictures from Linux World Expo and Conference '99Pictures from Linux World Expo and Conference 2000Pictures from Ottawa Linux Symposium 2000Pictures from the first GUADEC (2000)Talks I and Maciej Stachowiak gave at 2001

At GUADEC 5in Kristiansand, Norway (June 28th - 30th, 2004),I gave a talk on security and thedesktop. The paper to accompany the talk was not finished for the proceeds sohere it is. It's semi longish(10 pages), full of unsubstantiated claims and no bibliography.Hopefully the grammar is not too horrible and it's semi readable and useful.Enjoy...

At one point I bought one of those Agenda VR3's because they seemed cool.It's kind of a piece of crap, but nowadays you can get them incredibly cheapfrom various surplus stores and some company even makes ones with morememory (which was one of the many reasons why they were crap).Setting up software on these is not easy. You can get my current romdiskroot- and trythat. That's the last official 1.2.6 snow release (much faster then whatoriginally shipped with the thing) updated with gnuchess, gnuplot,prescribble and goVRec (go recorder). The fltkChess gnuchess frontend issomewhat more fixed in this version (source).I'd recommend the newest kernel and pmon (if you need to) fromAgendaWiki.

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