نتایج جستجو برای: stable homotopy groups of sphere
تعداد نتایج: 21205421 فیلتر نتایج به سال:
recent years have witnessed an increased attention to form focused instruction and consciousness raising activities (ellis, 2002; doughty & williams, 1998) on the one hand and extensive and meaningful exposure to the target language (klapper & rees, 2003; day & bamford, 1998) on the other. due to significance attributed to above mentioned issues by scholars, this study attempted to bridge them ...
abstract the present study was conducted to investigate the effectiveness of a rather newly developed method in language teaching that is the use of paragraph reading task and whole reading task and their effects on improving efl learner’s speaking ability. to fulfill the purpose of the study, first 90 participants studying their course at sa eedi high school in tehran were chosen by means of ...
In this paper we describe the first stages of a theory of 3-manifolds with finite fundamental group. The strong conjecture that any free finite group action on S is conjugate to a linear action is known for some cyclic groups, see [3], [4], and is supported by recent work of one of us on fundamental groups [2]. Here we concern ourselves with the weaker conjecture that any compact 3-manifold wit...
in fact, this study focused on the following questions: 1. is there any difference between the effect of functional/notional approach and the structural approaches to language teaching on the proficiency test of efl learners? 2. can a rather innovative language test referred to as "functional test" ge devised so so to measure the proficiency test of efl learners, and thus be as much reliable an...
Using operad methods and functional homology operations, we obtain inductive formulae for the differentials of the Adams spectral sequence of stable homotopy groups of spheres. The Adams spectral sequence was invented by Adams [1] almost fifty years ago for the calculation of stable homotopy groups of topological spaces (in particular, those of spheres). The calculation of the differentials of ...
Stable cohomotopy groups of Eilenberg-Mac Lane spectra of finite groups are shown to be trivial. This implies that the stable homotopy category, which is large enough to represent ordinary cohomology theory, cannot be self-dual. It can also be interpreted as an evidence to support Freyd's generating hypothesis and a proof of a stable version of a conjecture of D. Sullivan.
w. a. dudek, m. shahryari, representation theory of polyadic groups, algebra and representation theory, 2010. و a. borowiec, w. a. dudek, s. duplij, bi-element representations of ternary groups, comminications in algebra 34 (2006). هدف اصلی این پایان نامه، معرفی نمایش های گروه های n-تایی و بررسی ویژگی های اصلی آن ها با تمرکز روی گروه های سه تایی است.
The purpose of this article is to describe connections between the loop space of the 2-sphere, Artin’s braid groups, a choice of simplicial group whose homotopy groups are given by modules called Lie(n), as well as work of Milnor [25], and Habegger-Lin [17, 22] on ”homotopy string links”. The current article exploits Lie algebras associated to Vassiliev invariants in work of T. Kohno [19, 20], ...
Introduction. The Freudenthal suspension theorem implies that the set of homotopy classes of continuous maps from one finite complex to another is eventually invariant under iterated suspension of the complexes. In this "stable range" the set of homotopy classes is also well behaved in other ways. For example, it has in a natural way the structure of an abelian group. These stable groups of hom...
English Translation of Chapter 9 of the book Adams spectral sequence and stable homotopy groups of spheres (In Chinese)
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