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Generalized manifolds, normal invariants, and 𝕃-homology
Proceedings of the Edinburgh Mathematical Society ( IF 0.7 ) Pub Date : 2021-06-16 , DOI: 10.1017/s0013091521000316 Friedrich Hegenbarth , Dušan Repovš
Proceedings of the Edinburgh Mathematical Society ( IF 0.7 ) Pub Date : 2021-06-16 , DOI: 10.1017/s0013091521000316 Friedrich Hegenbarth , Dušan Repovš
Let $X^{n}$ be an oriented closed generalized $n$ -manifold, $n\ge 5$ . In our recent paper (Proc. Edinb. Math. Soc. (2) 63 (2020), no. 2, 597–607), we have constructed a map $t:\mathcal {N}(X^{n}) \to H^{st}_{n} ( X^{n}; \mathbb{L}^{+})$ which extends the normal invariant map for the case when $X^{n}$ is a topological $n$ -manifold. Here, $\mathcal {N}(X^{n})$ denotes the set of all normal bordism classes of degree one normal maps $(f,\,b): M^{n} \to X^{n},$ and $H^{st}_{*} ( X^{n}; \mathbb{E})$ denotes the Steenrod homology of the spectrum $\mathbb{E}$ . An important non-trivial question arose whether the map $t$ is bijective (note that this holds in the case when $X^{n}$ is a topological $n$ -manifold). It is the purpose of this paper to prove that the answer to this question is affirmative.
中文翻译:
广义流形、正态不变量和 𝕃-同调
让$X^{n}$ 是一个有向的封闭广义$n$ -歧管,$n\ge 5$ . 在我们最近的论文(Proc. Edinb. Math. Soc. (2) 63 (2020), no. 2, 597–607)中,我们构建了一张地图$t:\mathcal {N}(X^{n}) \to H^{st}_{n} ( X^{n}; \mathbb{L}^{+})$ 它扩展了正常不变量映射的情况$X^{n}$ 是一个拓扑$n$ -歧管。这里,$\mathcal {N}(X^{n})$ 表示一阶法线贴图的所有法线边界类的集合$(f,\,b): M^{n} \to X^{n},$ 和$H^{st}_{*} ( X^{n}; \mathbb{E})$ 表示谱的 Steenrod 同源性$\mathbb{E}$ . 一个重要的不平凡的问题出现了,地图是否$t$ 是双射的(请注意,这在以下情况下成立$X^{n}$ 是一个拓扑$n$ -歧管)。本文的目的是证明这个问题的答案是肯定的。
更新日期:2021-06-16
中文翻译:
广义流形、正态不变量和 𝕃-同调
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