A counterexample for lightning flash modules over E(e (1), e (2))

作者：Benson David^*; Bruner Robert R^*

来源：ARCHIV DER MATHEMATIK, 2016, 106(4): 323-325.

DOI：10.1007/s00013-016-0880-8

• Steenrod algebra
• Lightning flash
• Graded exterior algebra

We give a counterexample to Theorem 5 in Section 18.2 of Margolis' book, "Spectra and the Steenrod Algebra" and make remarks about the proofs of some later theorems in the book that depend on it. The counterexample is a module which does not split as a sum of lightning flash modules and free modules.

• 出版日期2016-4