Contact
Cum să cumpăr
Livrare
Consilier de cumpărături
Ergodic Theoretic Methods in Group Homology
A Minicourse on L2-Betti Numbers in Group Theory
engleză
171 b
Până la 30 de zile pentru returnare
Clienții au cumpărat de asemenea
/
Copertă tare
174.59
lei
This book offers a concise introduction to ergodic methods in group homology, with a particular focus on the computation of L 2 -Betti numbers. Group homology integrates group actions into homological structure. Coefficients based on probability measure preserving actions combine ergodic theory and homology. An example of such an interaction is provided by L 2 -Betti numbers: these invariants can be understood in terms of group homology with coefficients related to the group von Neumann algebra, via approximation by finite index subgroups, or via dynamical systems. In this way, L 2 -Betti numbers lead to orbit/measure equivalence invariants and measured group theory helps to compute L 2 -Betti numbers. Similar methods apply also to compute the rank gradient/cost of groups as well as the simplicial volume of manifolds. This book introduces L 2 -Betti numbers of groups at an elementary level and then develops the ergodic point of view, emphasising the connection with approximation phenomena for homological gradient invariants of groups and spaces. The text is an extended version of the lecture notes for a minicourse at the MSRI summer graduate school "Random and arithmetic structures in topology" and thus accessible to the graduate or advanced undergraduate students. Many examples and exercises illustrate the material.
Informații despre carte
engleză
Categorii
Dăruiește această carte chiar astăzi
Este foarte ușor
1 Adaugă cartea în coș și selectează Livrează ca un cadou 2 Îți vom trimite un voucher în schimb 3 Cartea va ajunge direct la adresa destinataruluiAr putea de asemenea, să te intereseze
/
Carte broșată
240.56
lei
/
Carte broșată
356.61
lei
/
Copertă tare
1 142.20
lei
