The Structure of the Rational Concordance Group of Knots - Couverture souple

Cha, Jae Choon

Couverture souple

ISBN 10 : 0821839934 ISBN 13 : 9780821839935

Editeur : American Mathematical Society, 2007

Synopsis

The author studies the group of rational concordance classes of codimension two knots in rational homology spheres. He gives a full calculation of its algebraic theory by developing a complete set of new invariants. For computation, he relates these invariants with limiting behaviour of the Artin reciprocity over an infinite tower of number fields and analyzes it using tools from algebraic number theory. In higher dimensions it classifies the rational concordance group of knots whose ambient space satisfies a certain cobordism theoretic condition. In particular, he constructs infinitely many torsion elements. He shows that the structure of the rational concordance group is much more complicated than the integral concordance group from a topological viewpoint. He also investigates the structure peculiar to knots in rational homology 3-spheres. To obtain further nontrivial obstructions in this dimension, he develops a technique of controlling a certain limit of the von Neumann $L2$-signature invarian

Détails de l'édition

• Éditeur: American Mathematical Society
• Date d'édition: 2007
• Langue: anglais
• ISBN 10: 0821839934
• ISBN 13: 9780821839935
• Reliure: Broché
• Nombre de pages: 95
• Coordonnées du fabricant: non disponible
• Personne responsable: non disponible