Per Alexandersson

A variety of mathematics

Documents and files

Analysens.Grunder.Bevis[2009][Swe]-PAXINUM.pdf

Download Analysens.Grunder.Bevis[2009][Swe]-PAXINUM.pdf

These are proofs of the theorems in the course "Analysens grunder". These were written during my undergraduate studies, and I'll take no responsibility for errors, failed exams, broken hearts or brain trauma caused by this text.

CoamoebaPlot.nb

Download CoamoebaPlot.nb

This notebook contains two functions for plotting coamouebas of polynomials in two variables. See this page for a brief intro and examples.

Determinant.Recurrence.pdf

Download Determinant.Recurrence.pdf

Eigenpolynomials[2009]Beamer[Eng]-PAXINUM.pdf

Download Eigenpolynomials[2009]Beamer[Eng]-PAXINUM.pdf

A brief presentation about one of my research areas. This is about spectral theory.

Flamethyst[2011][Source]-PAXINUM.rar

Download Flamethyst[2011][Source]-PAXINUM.rar

This is my java implementation of the Flame fractal algorithm, originally developed by Scott Draves. It is similar to Apophysis, but no GUI. It features gradients, post-transforms and gamma correction among other things.

Hence this is mainly for (java)-programmers interested in getting started with fractal programming.

Fractals[2009]Beamer[Eng]-PAXINUM.pdf

Download Fractals[2009]Beamer[Eng]-PAXINUM.pdf

This is my presentation of flame fractals and midpoint displacement fractals I used on a graduate student seminar.

Klassiska.Fraktaler[2009][Swe]-PAXINUM.pdf

Download Klassiska.Fraktaler[2009][Swe]-PAXINUM.pdf

This text describes the algorithms behind a number of classical fractals, from the Koch curve to Newton fractals. A detailed description on the flame fractal algorithm is included. The text is mainly aimed at undergraduate students or fractal artists that want to get some mathematical insight on the classical algorithms.

Linear.Algebra[2009][Swe]-ALEXANDERSSON.pdf

Download Linear.Algebra[2009][Swe]-ALEXANDERSSON.pdf

This is a collection of examples in Linear Algebra, suitable for the first semester course. There are some examples on inductive proofs in the end as well. Please send me suggestions on improvements, or typos.

Linear.Algebra[2009][Swe]-PAXINUM.pdf

Download Linear.Algebra[2009][Swe]-PAXINUM.pdf

This is a collection of examples in Linear Algebra, suitable for the first semester course. There are some examples on inductive proofs in the end as well. Please send me suggestions on improvements, or typos.

Matematik.Tips.Och.Trix[2008][Swe]-PAXINUM.pdf

Download Matematik.Tips.Och.Trix[2008][Swe]-PAXINUM.pdf

This is a guide on study technique, specialized for mathematics at university level.

Mathematica[2011]Beamer[Eng]-PAXINUM.pdf

Download Mathematica[2011]Beamer[Eng]-PAXINUM.pdf

This is a short beamer presentation on Mathematica, highlightning some useful functionsa and practices. Aimed for grad students, with $\epsilon$ prior experience of Mathematica.

Paxibubble[PC][Linux]-PAXINUM.rar

Download Paxibubble[PC][Linux]-PAXINUM.rar

A puzzle game i have written in Java.

Paxiflame[2009]JavaSource[Eng]-PAXINUM.tar

Download Paxiflame[2009]JavaSource[Eng]-PAXINUM.tar

This is my java implementation of the Flame fractal algorithm, originally developed by Scott Draves. It is similar to Apophysis, but no GUI. It features gradients, post-transforms and gamma correction among other things.

Hence this is mainly for (java)-programmers interested in getting started with fractal programming.

recursiondata_mathoverflow_87463.pdf

Download recursiondata_mathoverflow_87463.pdf

Rekursion[2009][Swe]-PAXINUM.pdf

Download Rekursion[2009][Swe]-PAXINUM.pdf

A short introduction on recursion, mainly examples.

schroedinger.1.2.m

Download schroedinger.1.2.m

A Mathematica package for applying monodromy actions to certain graphs. (See my licentiate thesis).

StokesLinesPlot.nb

Download StokesLinesPlot.nb

This notebook contains a function for plotting Stoke lines, as in this article by A. Gabrielov and A. Eremenko: www.math.purdue.edu/~agabriel/stokes9.pdf

Studieteknik[2009][Swe]-PAXINUM.pdf

Download Studieteknik[2009][Swe]-PAXINUM.pdf

This is a general study guide mainly aimed for high-school students. I've got some positive reactions:

"Läste nyss din text där du tipsar om studieteknik. Mycket bra och jag uppskattar verkligen personer som dig, personer som vill dela med sig av det goda. Jag hoppas att detta skall komma att hjälpa mig i framtiden."

taraimages.tar

Download taraimages.tar

Wire.Trees.Tutorial[2010][Eng]-PAXINUM.pdf

Download Wire.Trees.Tutorial[2010][Eng]-PAXINUM.pdf

A tutorial on how to make small trees out of wire, which is a nice relaxing hobby.

Copyright

You may download and redistribute all files in their original form. They may not be used for any commercial purposes. Any other use requires my personal authorization.


Recommended pages

Mattebloggen

MathOverflow

Contact information

Room 105

Institution of Mathematics

Stockholm University

Phone: 08-16 1435

Email: per@math.su.se

©Per Alexanderson, 2011