Peterson–Stein formula

In mathematics, the Peterson–Stein formula, introduced by Franklin P. Peterson and Norman Stein (1960), describes the Spanier–Whitehead dual of a secondary cohomology operation.

References

• Peterson, F. P.; Stein, N. (1960), "The dual of a secondary cohomology operation", Illinois Journal of Mathematics 4: 397–404, ISSN 0019-2082, MR 0151967