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math.AT2020
Fixed Point Sets and the Fundamental Group II: Euler Characteristics
Sylvain Cappell, Shmuel Weinberger, Min Yan
For a group of not prime power order, Oliver showed that the obstruction for a finite CW-complex to be the fixed point set of a contractible finite -CW-complex is the Eu…
math.AT2020
Fixed Point Sets and the Fundamental Group I: Semi-free Actions on G-CW-Complexes
Sylvain Cappell, Shmuel Weinberger, Min Yan
Smith theory says that the fixed point of a semi-free action of a group on a contractible space is ${\bb Z}_p$-acyclic for any prime factor of . Jones proved the convers…