Thomas, Emery Cohomology operations on p-fold sums. (English) Zbl 0242.55024 Proc. Am. Math. Soc. 33, 551-553 (1972). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 55S20 Secondary and higher cohomology operations in algebraic topology PDFBibTeX XMLCite \textit{E. Thomas}, Proc. Am. Math. Soc. 33, 551--553 (1972; Zbl 0242.55024) Full Text: DOI