04172nam a22005415i 4500001001800000003000900018005001700027007001500044008004100059020003700100024003500137050001600172072001600188072002300204082001400227100002700241245010500268264004600373300003600419336002600455337002600481338003600507347002400543490005300567505032700620520203800947650001702985650001303002650002803015650003403043650002603077650001603103650001903119650001703138650001903155650001603174650003403190650005403224650005103278710003403329773002003363776003603383830005303419856004803472912001403520999001903534952007703553978-0-387-49923-9DE-He21320180115171410.0cr nn 008mamaa100301s2007 xxu| s |||| 0|eng d a97803874992399978-0-387-49923-97 a10.1007/978-0-387-49923-92doi 4aQA241-247.5 7aPBH2bicssc 7aMAT0220002bisacsh04a512.72231 aCohen, Henri.eauthor.10aNumber Theoryh[electronic resource] :bVolume I: Tools and Diophantine Equations /cby Henri Cohen. 1aNew York, NY :bSpringer New York,c2007. aXXIII, 650 p.bonline resource. atextbtxt2rdacontent acomputerbc2rdamedia aonline resourcebcr2rdacarrier atext filebPDF2rda1 aGraduate Texts in Mathematics,x0072-5285 ;v2390 ato Diophantine Equations -- to Diophantine Equations -- Tools -- Abelian Groups, Lattices, and Finite Fields -- Basic Algebraic Number Theory -- p-adic Fields -- Quadratic Forms and Local-Global Principles -- Diophantine Equations -- Some Diophantine Equations -- Elliptic Curves -- Diophantine Aspects of Elliptic Curves. aThe central theme of this graduate-level number theory textbook is the solution of Diophantine equations, i.e., equations or systems of polynomial equations which must be solved in integers, rational numbers or more generally in algebraic numbers. This theme, in particular, is the central motivation for the modern theory of arithmetic algebraic geometry. In this text, this is considered through three aspects. The first is the local aspect: one can do analysis in p-adic fields, and here the author starts by looking at solutions in finite fields, then proceeds to lift these solutions to local solutions using Hensel lifting. The second is the global aspect: the use of number fields, and in particular of class groups and unit groups. This classical subject is here illustrated through a wide range of examples. The third aspect deals with specific classes of equations, and in particular the general and Diophantine study of elliptic curves, including 2 and 3-descent and the Heegner point method. These subjects form the first two parts, forming Volume I. The study of Bernoulli numbers, the gamma function, and zeta and L-functions, and of p-adic analogues is treated at length in the third part of the book, including many interesting and original applications. Much more sophisticated techniques have been brought to bear on the subject of Diophantine equations, and for this reason, the author has included five chapters on these techniques forming the fourth part, which together with the third part forms Volume II. These chapters were written by Yann Bugeaud, Guillaume Hanrot, Maurice Mignotte, Sylvain Duquesne, Samir Siksek, and the author, and contain material on the use of Galois representations, points on higher-genus curves, the superfermat equation, Mihailescu's proof of Catalan's Conjecture, and applications of linear forms in logarithms. The book contains 530 exercises of varying difficulty from immediate consequences of the main text to research problems, and contain many important additional results. 0aMathematics. 0aAlgebra. 0aField theory (Physics). 0aOrdered algebraic structures. 0aComputer mathematics. 0aAlgorithms. 0aNumber theory.14aMathematics.24aNumber Theory.24aAlgorithms.24aField Theory and Polynomials.24aComputational Mathematics and Numerical Analysis.24aOrder, Lattices, Ordered Algebraic Structures.2 aSpringerLink (Online service)0 tSpringer eBooks08iPrinted edition:z9780387499222 0aGraduate Texts in Mathematics,x0072-5285 ;v23940uhttp://dx.doi.org/10.1007/978-0-387-49923-9 aZDB-2-SMA c369545d369545 001040708EBookaelibbelibd2018-01-15r2018-01-15w2018-01-15yEBOOK