Abstract
Let X and Y be pathwise connected and paracompact Hausdorff spaces equipped with free involutions
where, for each i,
Funding statement: The first three authors named are partially supported by Projeto Temático: Topologia Algébrica, Geométrica e Diferencial, FAPESP, process number: 2016/24707-4. The fourth author is supported by FAPESP, process number: 2018/17240-8.
Acknowledgements
The authors would like to thank Edivaldo Lopes dos Santos for stimulating discussions which improved the paper.
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