  We found an interesting application of the K-theoretic Heisenberg algebras of
Weiqiang Wang to the foundations of permutation equivariant K-theoretic
Gromov--Witten theory. We also found an explicit formula for the genus 0
correlators in the permutation equivariant Gromov--Witten theory of the point.
In the non-equivariant limit our formula reduces to a well known formula due to
Y.P. Lee.
