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A. Jones, S.A. Morris, K.R. Pearson and Famous Impossibilities Series: Universitext

The famous problems of , and trisecting an captured the imagination of both professional and amateur for over two thousand years. Despite the enormous effort and ingenious attempts by these men and women, the problems would not yield to purely geometrical methods. It was only the development. of abstract algebra in the nineteenth century which enabled mathematicians to arrive at the surprising conclusion that these constructions are not possible. In this book we develop enough abstract algebra to prove that these constructions are impossible. Our approach introduces all the relevant concepts about fields in a way which is more concrete than usual and which avoids the use of structures (and even of the Euclidean for finding the greatest common of two ). Having the geometrical questions as a specific goal provides motivation for the introduction of the algebraic concepts and we have found that students respond very favourably. We have used this text to teach second-year students at La Trobe University over a period of many years, each time refining the material in the 1991, X, 189 p. light of student performance.

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