Introduction to l²-invariants / Lecture Notes in Mathematics Bd.2247 (PDF)
(Sprache: Englisch)
This book introduces the reader to the most important concepts and problems in the field of l²-invariants. After some foundational material on group von Neumann algebras, l²-Betti numbers are defined and their use is illustrated by several examples. The...
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This book introduces the reader to the most important concepts and problems in the field of l²-invariants. After some foundational material on group von Neumann algebras, l²-Betti numbers are defined and their use is illustrated by several examples. The text continues with Atiyah's question on possible values of l²-Betti numbers and the relation to Kaplansky's zero divisor conjecture. The general definition of l²-Betti numbers allows for applications in group theory. A whole chapter is dedicated to Lück's approximation theorem and its generalizations. The final chapter deals with l²-torsion, twisted variants and the conjectures relating them to torsion growth in homology.
The text provides a self-contained treatment that constructs the required specialized concepts from scratch. It comes with numerous exercises and examples, so that both graduate students and researchers will find it useful for self-study or as a basis for an advanced lecture course.
Autoren-Porträt von Holger Kammeyer
Holger Kammeyer studied Mathematics at Göttingen and Berkeley. After a postdoc position in Bonn he is now based at Karlsruhe Institute of Technology. His research interests range around algebraic topology and group theory. The application of l ²-invariants forms a recurrent theme in his work. He has given introductory courses on the matter on various occasions.
Bibliographische Angaben
- Autor: Holger Kammeyer
- 2019, 1st ed. 2019, 183 Seiten, Englisch
- Verlag: Springer-Verlag GmbH
- ISBN-10: 303028297X
- ISBN-13: 9783030282974
- Erscheinungsdatum: 29.10.2019
Abhängig von Bildschirmgrösse und eingestellter Schriftgrösse kann die Seitenzahl auf Ihrem Lesegerät variieren.
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- Grösse: 3.46 MB
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Englisch
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