منابع مشابه
Novikov-betti Numbers and the Fundamental Group
This result may appear striking as the Novikov-Betti numbers carry “abelian” information about X. We refer to [4], [3] for the definition of the Novikov-Betti numbers; an explicit definition will also be given below in the proof of Theorem 1. An alternative description of bi(ξ) uses homology of complex flat line bundles. Consider the variety Vξ of all complex flat line bundles L over X having t...
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Γ(m + 1) = BP∗(BP )/ (t1, . . . , tm) ∼= BP∗[tm+1, tm+2, . . . ]. In particular Γ(1) = BP∗(BP ) by definition. To get the structure of ExtΓ(m+1)(BP∗, BP∗), we will use the chromatic method introduced in [3]. Denote an ideal (p, v1, · · · vn−1) of BP∗ by In, and a comodule v−1 n+sBP∗/(p, v1, · · · , vn−1, v∞ n , · · · , v∞ n+s−1). by M s n. Then we can consider the chromatic spectral sequence co...
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ژورنال
عنوان ژورنال: International Mathematics Research Notices
سال: 2019
ISSN: 1073-7928,1687-0247
DOI: 10.1093/imrn/rnz032