9780817640262 - introduction to the galois correspondence von fenrick, maureen h. (4 Ergebnisse)
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Hardcover. 2. ed. IX, 235 p. Ex-library with stamp and library-signature. GOOD condition, some traces of use. Ehem. Bibliotheksexemplar mit Signatur und Stempel. GUTER Zustand, ein paar Gebrauchsspuren. C-04274 9780817640262 Sprache: Englisch Gewicht in Gramm: 550.
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Zustand: New. Presenting a clear exposition of Galois correspondence at an introductory level, this second edition of the text is considerably expanded. Num Pages: 244 pages, biography. BIC Classification: PBCH. Category: (P) Professional & Vocational; (UP) Postgraduate, Research & Scholarly; (UU) Undergraduate. Dimension: 235 x… 155 x 15. Weight in Grams: 1200. . 1998. 2nd ed. 1998. Hardback. . . . . Books ship from the US and Ireland.
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Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - In this presentation of the Galois correspondence, modern theories of groups and fields are used to study problems, some of which date back to the ancient Greeks. The techniques used to solve these problems, rather than the solutions themselves, are of prim…ary importance. The ancient Greeks were concerned with constructibility problems. For example, they tried to determine if it was possible, using straightedge and compass alone, to perform any of the following tasks (1) Double an arbitrary cube; in particular, construct a cube with volume twice that of the unit cube. (2) Trisect an arbitrary angle. (3) Square an arbitrary circle; in particular, construct a square with area 1r. (4) Construct a regular polygon with n sides for n 2. If we define a real number c to be constructible if, and only if, the point (c, 0) can be constructed starting with the points (0,0) and (1,0), then we may show that the set of constructible numbers is a subfield of the field R of real numbers containing the field Q of rational numbers. Such a subfield is called an intermediate field of Rover Q. We may thus gain insight into the constructibility problems by studying intermediate fields of Rover Q. In chapter 4 we will show that (1) through (3) are not possible and we will determine necessary and sufficient conditions that the integer n must satisfy in order that a regular polygon with n sides be constructible.
