scholarly journals The Equivariant Coarse Novikov Conjecture and Coarse Embedding

2020 ◽  
Vol 380 (1) ◽  
pp. 245-272
Author(s):  
Benyin Fu ◽  
Xianjin Wang ◽  
Guoliang Yu
1981 ◽  
Vol 83 (3) ◽  
pp. 656-656 ◽  
Author(s):  
Jerome Kaminker ◽  
John G. Miller
Keyword(s):  

2019 ◽  
Vol 74 (3) ◽  
pp. 525-541
Author(s):  
G. Yu
Keyword(s):  

Author(s):  
Zhizhang Xie ◽  
Guoliang Yu

Abstract In this paper, we establish a precise connection between higher rho invariants and delocalized eta invariants. Given an element in a discrete group, if its conjugacy class has polynomial growth, then there is a natural trace map on the $K_0$-group of its group $C^\ast$-algebra. For each such trace map, we construct a determinant map on secondary higher invariants. We show that, under the evaluation of this determinant map, the image of a higher rho invariant is precisely the corresponding delocalized eta invariant of Lott. As a consequence, we show that if the Baum–Connes conjecture holds for a group, then Lott’s delocalized eta invariants take values in algebraic numbers. We also generalize Lott’s delocalized eta invariant to the case where the corresponding conjugacy class does not have polynomial growth, provided that the strong Novikov conjecture holds for the group.


2012 ◽  
Vol 16 (3) ◽  
pp. 1859-1880 ◽  
Author(s):  
Gennadi Kasparov ◽  
Guoliang Yu

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