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arXiv · 2209.01742

On products of beta and gamma elements in the homotpy of the first Smith-Toda spectrum

Katsumi Shimomura·Mao-No-Suke Shimomura
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Abstract

In this paper, we determine the first cohomology of the monochromatic comodule $M^1_2$ at an odd prime, and apply the results to show non-trivialities of some products of beta and gamma elements in the homotopy groups of the Smith-Toda spectrum $V(1)$. The cohomology for a prime greater than three was determined by the first author. Here, we verify them and determine the cohomology at the prime 3 by elementary calculation. The cohomology will be a stepping stone for computing the cohomology of the monochromatic comodule $M^3_0$, which we hope to determine for a long time.

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Katsumi Shimomura, Mao-No-Suke Shimomura. 2022-09-05. On products of beta and gamma elements in the homotpy of the first Smith-Toda spectrum. https://doi.org/10.2140/agt.2024.24.3875

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