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The Brown-Peterson spectrum is not $\mathbb{E}_{2(p^2+2)}$ at odd primes

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arxiv 1710.09822 v2 pith:R5MG4AIK submitted 2017-10-26 math.AT

classification math.AT
keywords mathrmbrown-petersonmathbbspectrumresultsringspectraadmit
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abstract

We show that the odd-primary Brown-Peterson spectrum $\mathrm{BP}$ does not admit the structure of an $\mathbb{E}_{2(p^2+2)}$ ring spectrum and that there can be no map $\mathrm{MU} \to \mathrm{BP}$ of $\mathbb{E}_{2p+3}$ ring spectra. We also prove the same results for truncated Brown-Peterson spectra $\mathrm{BP} \langle n \rangle$ of height $n \geq 4$. This extends results of Lawson at the prime $2$.

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  1. A homological approach to chromatic complexity of algebraic K-theory

    math.AT 2019-08 conditional novelty 7.0 of 10

    For the Thom spectra y(n) between S and HF2, the paper proves that K(m)_*(TP(y(n))) vanishes for 1≤m≤n, so TP raises chromatic height by one.

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