3 papers
math.GT2020
Fixed point indices and fixed words at infinity of selfmaps of graphs
Qiang Zhang, Xuezhi Zhao
Indices of fixed point classes play a central role in Nielsen fixed point theory. Jiang-Wang-Zhang proved that for selfmaps of graphs and surfaces, the index of any fixed point cla…
math.GT2019
On the bounded index property for products of aspherical polyhedra
Shengkui Ye, Qiang Zhang
A compact polyhedron is said to have the Bounded Index Property for Homotopy Equivalence (BIPHE) if there is a finite bound such that for any homotopy equivalence…
math.GR2018
Fixed subgroups in direct products of surface groups of Euclidean type
Jianchun Wu, Enric Ventura, Qiang Zhang
We give an explicit characterization of which direct products of surface groups of Euclidean type satisfy that the fixed subgroup of any automorphism (or endomorphism) of i…