# Do there exist modern expositions of Klein's Icosahedron?

Reading Serre's letter to Gray , I wonder if now modern expositions of the themes in Klein's book exist. Do you know any?

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The link should go to page 550 of the book, presumably. –  Mariano Suárez-Alvarez Dec 21 '09 at 14:42

Jerry Shurman

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Wonderfull! Thanks! –  Thomas Riepe Jan 23 '10 at 8:56
Thanks. What a beautiful book. –  Ben McKay Aug 6 '13 at 21:08

I got interested in this subject last year and just got round to writing up some notes which I hope may be of use.

I also have a python script which implements the Klein's icosahedral solution of the quintic linked from this page.

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Great! Thanks! –  Thomas Riepe Feb 5 '12 at 21:31

In Glimpses of algebra and geometry by Gabor Toth, chapter 25 is devoted to Klein's main result.

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Chapter 5 of McKean and Moll's "Elliptic Curves" explores the circle of ideas around Ikosaeder.I'm not sure if you'd consider this sufficiently "modern" - it's certainly a contemporary book but it doesn't use, say, scheme-theoretic language.

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It looks like our identical answers crossed paths! You beat me by one minute, so I'll delete my answer. –  Andy Putman Dec 21 '09 at 19:18
lol, you're right - I caught it just before you deleted. Very gallant of you! and hey, in math, every minute counts. :-) –  Alon Amit Dec 21 '09 at 19:58
As an aside to everyone else -- McKean and Moll's book is really beautiful! I read large chunks of it as an undergraduate, and I still go back to it periodically. –  Andy Putman Dec 21 '09 at 20:12

I covered Klein's "Lectures on the Icosahedron" in a modern way in my doctoral thesis:

Elliptic Curves and Icosahedral Galois Representations, Stanford University (1999) http://www.math.purdue.edu/~egoins/notes/thesis.pdf

A much shorter and more direct exposition is my publication in IMRN:

Icosahedral $\mathbb Q$-Curve Extensions, Mathematical Research Letters 10, 205–217 (2003) http://intlpress.com/site/pub/files/_fulltext/journals/mrl/2003/0010/0002/MRL-2003-0010-0002-00019947.pdf

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There is a (german) new edition of Klein's "Vorlesungen über das Ikosaeder ..." by Peter Slodowy (1993) with a large (about 80 pages) section of comments and remarks about new developments.

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