# 2-Generator golod p-groups by Timofeenko A.V.

By Timofeenko A.V.

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0 Hence pαs/t = αs/t−1 , αs/1 = αs , and βt/1 = βt by definition. 18(b). The first thing we must do is show that the elements produced are actually nontrivial in the E2 -term. This has been done only for α’s, β’s, and γ’s. For p = 2, β1 and γ1 are zero but for t > 1 βt and γt are nontrivial; these results are part of the recent computation of E22,∗ at p = 2 by Shimomura [1], which also tells us which generalized β’s are defined and are nontrivial. The corresponding calculation at odd primes was done in Miller, Ravenel, and Wilson [1], as was that of E21,∗ for all primes.

The stable zone. The inductive method. The stable EHP spectral sequence. The Adams vector field theorem. James periodicity. The J-spectrum. The spectral sequence for J∗ (RP ∞ ) and J∗ (BΣp ). Relation to the Segal conjecture. The Mahowald root invariant. 5. 7). We will explain how the Adams vector field theorem, the Kervaire invariant problem, and the Segal conjecture are related to the unstable homotopy groups of spheres. 3. We are including this survey here because no comparable exposition exists in the literature and we believe these results should be understood by more than a handful of experts.

At the column Er4,∗ . The differentials affecting those groups are indicated on the chart. , becomes null homotopic) when suspended to π9 (S 5 ); since it first appears on S 3 we say it is born there. Similarly, the generator of E14,4 corresponds to an element that is born on S 4 and dies on S 6 and hence shows up in E16,3 = π9 (S 5 ). We leave it to the reader to determine the remaining groups shown in the chart, assuming the differentials are as shown. We now turn to the problem of computing differentials and group extensions in the EHP spectral sequence.