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arXiv · 1909.03117

Steenrod operations and A-module extensions

Robert Bruner·Christian Nassau·Sean Tilson
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Abstract

Explicit extensions representing cocycles $x \in Ext_{A}^{s,t}(F_2,F_2)$ are useful in calculating Steenrod operations $Sq^i : Ext_{A}^{s,t}(F_2,F_2) \longrightarrow Ext_{A}^{s+i,2t}(F_2,F_2)$ by a method devised by the second author. This can be used to identify explicit cocycles in the minimal resolutions produced by the first author's computer programs, and this information is useful in determining differentials in the Adams spectral sequence.

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Robert Bruner, Christian Nassau, Sean Tilson. 2019-09-06. Steenrod operations and A-module extensions. https://arxiv.org/abs/1909.03117

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