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Proof of class number formulae by machine
Authors:Guangheng Ji  Hongwen Lu
Institution:(1) Department of Mathematics, Tongji University, 200092 Shanghai, China
Abstract:As an attempt to follow the direction of machine proof, a personal computer LE0386/25 is used to prove some class number formulae for certain imaginary quadratic number fields 
$${\Bbb Q}\left( {\sqrt p } \right)$$
,q=3, 7, 11, 19, 23, 31, 43 and 47) if the real quadratic number field 
$${\Bbb Q}\left( {\sqrt { - p} } \right)$$
has class number one for a primep = 4N 2 + 1 (N is a positive integer). Project supported by the National Natural Science Foundation of China.
Keywords:quadratic fields  class number  continued fractions  computer
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