In this article, we classify all involutions on with –dimensional fixed point set. In particular, we discuss the relation between the classification of involutions with fixed point set a knotted –sphere and the classification of free involutions on homotopy ’s.
"Involutions on $S^6$ with $3$–dimensional fixed point set." Algebr. Geom. Topol. 10 (4) 1905 - 1932, 2010. https://doi.org/10.2140/agt.2010.10.1905