@Article{CMR-36-489, author = {Rong , Xiaochun and Yao , Xuchao}, title = {Bounding Topology via Geometry, $A$-Simple Fundamental Groups}, journal = {Communications in Mathematical Research }, year = {2020}, volume = {36}, number = {4}, pages = {489--505}, abstract = {

We call a group $A$-simple, if it has no non-trivial normal abelian sub-group. We will present finiteness results in controlled topology via geometry on manifolds whose fundamental groups are $A$-simple.

}, issn = {2707-8523}, doi = {https://doi.org/10.4208/cmr.2020-0030}, url = {http://global-sci.org/intro/article_detail/cmr/18363.html} }