Z2 actions on complexes with three non-trivial cells

In this paper, we study Z2 actions on a cell complex X having its cohomology ring isomorphic to that of the wedge sum P2(n)∨S3n or Sn∨S2n∨S3n. We determine the possible fixed point sets depending on whether or not X is totally non-homologous to zero in XZ2 and give examples realizing all possible cases.