Abstract
It is first shown that the comparison theorem in relative homological algebra is the only tool to be used for introducing Steenrod operations in Cotor as well as in Ext. Then, the interaction of the operations in both functors is discussed in full detail. Some basic properties of the operations are given in the last section of the paper.
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The authors would like to thank a referee for his suggestion to reorganize their paper in the present form.
This work is supported in part by NSF research grant GP-9585.
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Uehara, H., Al-Hashimi, B., Brenneman, F.S. et al. Steenrod squares in Cotor. Manuscripta Math 13, 275–296 (1974). https://doi.org/10.1007/BF01168229
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DOI: https://doi.org/10.1007/BF01168229