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- Path: sparky!uunet!newsflash.concordia.ca!daily-planet.concordia.ca!alcor.concordia.ca!mckay
- From: mckay@alcor.concordia.ca (John McKay)
- Newsgroups: sci.math
- Subject: > Fields Medallists ...
- Message-ID: <5686@daily-planet.concordia.ca>
- Date: 26 Jan 93 12:20:09 GMT
- Sender: usenet@daily-planet.concordia.ca
- Organization: Concordia University, Montreal, Quebec
- Lines: 16
- Originator: mckay@alcor.concordia.ca
-
-
- Bott studied Electrical Engineering at McGill then went to Cornell.
- Harold Davenport supervised both Roth and Alan Baker. They both got
- their Fields medals for work in the same area - diophantine approximation.
- Roth proved that there are only finitely many rational numbers p/q
- such that abs(a - p/q) < 1/(q^(2+epsilon)) for a = algebraic of degree
- n > 2 and arbitrarily small epsilon > 0.
- Baker gave lower bounds for linear forms in logarithms of algebraic
- numbers. This is applicable to many diophantine equations. He proved
- that there are effectively computable numbers bounding the size of
- solutions to many diophantine problems: one example easy to comprehend
- is: Can we extend the sequence 1,3,8,120 of non-zero integers such that
- the product of any two members of the sequence is one less than a square?
- Baker stated, and others verified, that his method was practicable and
- could be used with a computer to find all solutions.
-
-