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- From: palais@binah.cc.brandeis.edu
- Newsgroups: sci.math
- Subject: Re: Frobenius Thm. on real dision algebras
- Message-ID: <1993Jan27.141648.28398@news.cs.brandeis.edu>
- Date: 27 Jan 93 14:16:48 GMT
- References: <93025.140941E62802@TRMETU.BITNET>
- Sender: news@news.cs.brandeis.edu (USENET News System)
- Reply-To: palais@binah.cc.brandeis.edu
- Organization: Brandeis University
- Lines: 16
-
- > As far as I know there is a theorem due to Frobenius, which
- >states that the only associative divison algebras over real numbers
- >are complex numbers and quaternions (if you drop the requirement
- >of associativity octonions are also added to this list.)
- >
- > Here are my questions...
- >1- Where can I find an explicit proof of this and related theorems?
- >(In Porteus' (Topological Geometry) , there is some info about the subject
- >but if there other sources, I'd like to know them.)
-
- If you'll settle for the associative case, there is a short and elementary
- proof in:
-
- "The classification of real division algebras", Amer. Math. Monthly v.75
- (1966) pp 366--368
- (by one R. Palais).
-