Formally real fields,pythagorean fields,C-fields andW-groups |
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| Authors: | Ján Mináĉ Michel Spira |
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| Affiliation: | (1) Department of Mathematics, University of Western Ontario, Middlesex College, N6A 5B7 London, Ontario, Canada;(2) Departamento de Matemática, Universidade Federal de Minas Gerais, Caixa Postal 702, 30161 Belo Horizonte MG, Brasil |
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| Abstract: | Supported in part by the National Science Foundation and the Natural Sciences and Engineering Research Council of Canada |
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