On modular cohomotopy groups

On modular cohomotopy groups
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关于模上同伦群

DOI:
10.1007/s11856-022-2409-0
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发表时间:
2022
影响因子:
1
通讯作者:
Jie Wu
Jie Wu
中科院分区:
数学2区
文献类型:
--
作者:
Pengcheng Li;Jianzhong Pan;Jie Wu

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设p是素数,π ^ n(X ; n/ p ^ r)= [ X,M _n(n/ p ^ r)]是从CW-复形X到n次模p ^ r摩尔空间M _ n(n/ p ^ r)的基映射的同伦类集,其中n/ p ^ r表示模p ^ r的整数。本文首先用经典的准素上同调运算方法确定模上同调群π ^ n(X ; n/ p ^ r)的扩张,并给出扩张可裂的条件.其次,利用摩尔空间的不稳定同伦理论研究了模上同伦群,特别确定了dim(X)≤ 6的群π ^3(X ; π_(2))。
Let p be a prime and let π ^ n ( X ; ℤ/ p ^ r ) = [ X, M _n(ℤ/ p ^ r )] be the set of homotopy classes of based maps from CW-complexes X into the mod p ^ r Moore spaces M _ n (ℤ/ p ^ r ) of degree n , where ℤ/ p ^ r denotes the integers mod p ^ r . In this paper we firstly determine the modular cohomotopy groups π ^ n ( X ; ℤ/ p ^ r ) up to extensions by classical methods of primary cohomology operations and give conditions for the splitness of the extensions. Secondly we utilize some unstable homotopy theory of Moore spaces to study the modular cohomotopy groups; especially, the group π ^3( X ; ℤ_(2)) with dim( X ) ≤ 6 is determined.
DOI: 10.1007/s00222-003-0288-5
发表时间: 2002-04
影响因子: 3.1
作者:
S. Bauer;M. Furuta
通讯作者: S. Bauer;M. Furuta