Transchromatic extensions in motivic bordism
Transchromatic extensions in motivic bordism
复制标题
动机边界主义中的跨色延伸
DOI:
10.1090/bproc/108
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Zeng, Mingcong
中科院分区:
文献类型:
--
作者:
Beaudry, Agnès;Hill, Michael;Shi, XiaoLin Danny;Zeng, Mingcong
We show a number of Toda brackets in the homotopy of the motivic bordism spectrum $ MGL $ and of the Real bordism spectrum $ MU_ {\mathbb R} $. These brackets are “red-shifting” in the sense that while the terms in the bracket will be of some chromatic height $ n $, the bracket itself will be of chromatic height $(n+ 1) $. Using these, we deduce a family of exotic multiplications in the $\pi _ {(\ast,\ast)} MGL $-module structure of the motivic Morava $ K $-theories, including non-trivial multiplications by $2 $. These in turn imply the analogous family of exotic multiplications in the $\pi _ {\star} MU_\mathbb R $-module structure on the Real Morava $ K $-theories. References
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--
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