Infinitely generated objects
Infinitely generated objects
批准号:
16540125
负责人:
EDA Katsuya
金额:
$1.65万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2004
资助国家:
日本
项目状态:
已结题
起止时间:
2004 至 2007
中文摘要
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英文摘要
We have gotten results on the following five items. That is, we gotten considerably sufficient results for our original plans except for continuous words.(1) The fundamental groups of wild spaces ; (2) New constructions of wild spaces ; (3) A classification of finite-sheeted convering maps over 2-dimensional compact abelian groups ; (4) Grope groups ; (6) Infinitary words.(1): Suppose that a Peano continuum X is wild everywhere, i.e. not locally semi-simply connected at every point and pi_1(X) is a subgroup of the free product G^*H. Then, pi_1(X) is a conjugate of a subgroup of G or H. This implies that the fundamental groups of wild Peano continua cannot only be taken part into free products, but have a completely opposite property. This result was announced at the occasion of Borsuk conference and was submitted in December of 2005. This result is applied to a study of the fundamental groups obtained by attaching copies of the Hawaiian aearring to manifolds.(2) : In a collabolation with D. Repovs and U. Karimov we introduced a new construction of a space SC(X), which is obtained by attaching a cone C(X) to the square along the Topologists' sine curve. For a connected space SC(X) is simply-connected, and pi _2(4) is trivial if and only if pi_1(X) is trivial.
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On the fundamental group of R^3 modulo the Case-Chamberin continuum
关于 R^3 模 Case-Chamberin 连续统的基本群
DOI:
--
发表时间:
2007
期刊:
Glasnik Mate. 42
影响因子:
--
作者:
[K.Eda, V.Matijevic, G.Conner-K.Eda, K.Eda-U.H.Karimov-D.Repovs]
通讯作者:
K.Eda-U.H.Karimov-D.Repovs
Algebraic Topology of Peano continua
皮亚诺连续体的代数拓扑
DOI:
--
发表时间:
2005
期刊:
Topology and its application 153
影响因子:
--
作者:
[K.Eda, Vlasta Matijevic, K.Eda-J. Mandic-V. Matijevic, K.Eda]
通讯作者:
K.Eda
Correction to : Algebraic topology of Peano continua and Fundamental groups having the whole information of spaces
修正:皮亚诺连续体的代数拓扑和具有空间全部信息的基本群
DOI:
--
发表时间:
2007
期刊:
Topology Appl. 154
影响因子:
--
作者:
[G.Conner, K.Eda]
通讯作者:
K.Eda
Finite sheeted covering maps over 2-dimensional connected, compact abelian groups
二维连通紧阿贝尔群上的有限片状覆盖图
DOI:
--
发表时间:
2006
期刊:
Topology and its Applications 153
影响因子:
--
作者:
[H. Takagi, T. Miura, T. Hayata and S-E. Takahasi, K. Eda and V. Matijevic]
通讯作者:
K. Eda and V. Matijevic
Torus-like continua which are not self-convering spaces
类似环面的连续体,不是自转换空间
DOI:
--
发表时间:
2006
期刊:
Topology Appl. 153
影响因子:
--
作者:
[K.Eda, U.Karimov, D.Repovs, K.Eda-J.Mandic-V.Matijevic]
通讯作者:
K.Eda-J.Mandic-V.Matijevic
共 12 条
Ininfitely generated objects(fundamental groups of wild spaces)
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批准号:20540097
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.33万
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财政年份:2008
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负责人:EDA Katsuya
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依托单位:
海外基金