co-prolongations of a group extension
نویسندگان
چکیده
the aim of this paper is to study co-prolongations of central extensions. we construct the obstruction theory forco-prolongations and classify the equivalence classes of these by kernels of homomorphisms between 2-dimensional cohomology groups of groups.
منابع مشابه
Algebraic Aspects of Prolongations
Exterior differential systems and their prolongations were introduced by É. Cartan [2, pp. 585 ff.]. They have been studied by E. Kahler [3, pp. 50-51], Y. Matsushima [6], M. Kuranishi [4], [5] and É. Cartan himself [2, Chapter 6]. Two viewpoints seem to predominate in modern treatments. One approach is geometric [4], [6]. The prolonged system is defined on a submanifold of a Grassmann bundle. ...
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عنوان ژورنال:
international journal of group theoryناشر: university of isfahan
ISSN 2251-7650
دوره 3
شماره 1 2014
کلمات کلیدی
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