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arXiv 1606.09443math.AT
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Singer结构的A-可分解性

The A-decomposability of the Singer construction

Nguyen H. V. Hung, Geoffrey Powell

摘要:

令$R_s M$表示素数为2的Steenrod代数$A$上的不稳定模$M$上的Singer构造,$R_s M$是$P_s\otimes M$的正则子对象,其中$P_s$是s生成元上的一次多项式代数.通过$A$ -不可分解给出了自然变换$R_s M \rightarrow F \otimes_A (P_s \otimes M)$,它与辛格转移和Lannes-Zarati同态的合成的对偶相同。本文的主要结果证明了第一作者提出的弱广义代数球面类猜想。也就是说,当s>2时,这个态射在正次数的元素上是平凡的。条件s>2是必要的,如由Hopf不变项的球面类和Kervaire不变项的球面类所展示的。

英文摘要:

Let $R_s M$ denote the Singer construction on an unstable module $M$ over the Steenrod algebra $A$ at the prime two; $R_s M$ is canonically a subobject of $P_s\otimes M$, where $P_s$ is the polynomial algebra on s generators of degree one. Passage to $A$-indecomposables gives the natural transformation $R_s M \rightarrow F \otimes_A (P_s \otimes M)$, which identifies with the dual of the composition of the Singer transfer and the Lannes-Zarati homomorphism. The main result of the paper proves the weak generalized algebraic spherical class conjecture, which was proposed by the first named author. Namely, this morphism is trivial on elements of positive degree when s>2. The condition s>2 is necessary, as exhibited by the spherical classes of Hopf invariant one and those of Kervaire invariant one.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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