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- From: sec@otter.hpl.hp.com (Simon Crouch)
- Date: Fri, 11 Sep 1992 09:24:26 GMT
- Subject: Re: Freedman-Donaldson Theorem
- Message-ID: <640035@otter.hpl.hp.com>
- Organization: Hewlett-Packard Laboratories, Bristol, UK.
- Path: sparky!uunet!wupost!usc!sdd.hp.com!scd.hp.com!hplextra!otter.hpl.hp.com!otter!sec
- Newsgroups: sci.math
- References: <4173@seti.UUCP>
- Lines: 43
-
- In sci.math, ara@zurich.ai.mit.edu (Allan Adler) writes:
-
-
- > Several people have suggested various books aimed at making it easier to
- > prepare one to read the Freedman-Donaldson proof (which I haven't read).
- > I usually find it somewhat discouraging to be given a list of several
- > books to read, each of which will in turn present its own difficulties,
- > and to resolve the variations in notation, conventions and points of
- > view of various authors, when all I really want is to read a particular
- > paper or accomplish a particular task. It is sort of like saying, "You can't
- > just DO that. You first have to become someone who DOES that."
-
- Hi Allan,
- What you say is very true - I remember the frustrations
- as a beginning graduate student trying to read the latest
- and greatest and being directed to weighty tomes!
- Unfortunately, there is no "Freedman-Donaldson proof" There
- is a Freedman proof (dealing with topological four-manifolds)
- and a Donaldson proof (dealing with differentiable four-manifolds).
- Both appeared
- in the Journal of Differential Geometry (I seem to remember)
- in the early to mid 80's. They are both very hard. (For me
- anyway!)
-
- > Maybe the Freedman-Donaldson paper is too hard just to read directly.
- > But why not determine that based on an attempt to read it first hand
- > and to decide for oneself exactly what one needs to know to read it
- > and how to learn what one needs to know?
-
- Both Freedman and Donaldson have written books that "improve"
- on the earlier proofs and give indications to the reader about what
- is required as prerequisite to the proofs.
- The introductions to these books give
- excellent summaries as to what is "going on". I gave these references, since
- they genuinely offer a less thorny path towards understanding the theorems.
- The other books I suggested (Lawsons "Spin Geometry" in particular) are
- good references to look up the stuff you'll need to understand.
- I hope somebody does the same for Witten's stuff :-)
-
- > Allan Adler
- > ara@altdorf.ai.mit.edu
-
- Simon Crouch.
-