نتایج جستجو برای: derived series

تعداد نتایج: 814716  

Journal: :Journal of the London Mathematical Society 2008

Journal: :فیزیک زمین و فضا 0
علیرضا آزموده اردلان دانشیار، گروه مهندسی نقشه برداری، قطب علمی مهندسی نقشه برداری و مقابلة با سوانح طبیعی، پردیس دانشکده های فنی، دانشگاه تهران، ایران محمدجواد طوریان دانش آموخته کارشناسی ارشد، گروه مهندسی نقشه برداری، پردیس دانشکده های فنی، دانشگاه تهران، ایران

based on 11 years of topex/poseidon satellite altimetry and coastal tide gauge sea level observations, four tidal constituents, namely o1, k1, m2 and s2, are modeled for the persian gulf and oman sea using a time-wise approach according to the following details. by selecting the cycle 100 as the reference, 772 points on 12 paths along the track of the altimetry satellite footprints over the per...

Parallel, standby and series configurations are different types of power switch configuration that can be considered in semiconductor switches to improve the reliability of power electronic converters and theirs lifetime, especially in specific application such as high power industrial applications, satellites, power electronic interface for renewable energies and etc. In this paper, the reliab...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده ادبیات و زبانهای خارجی 1391

esl/efl books play a crucial role in shaping language learners worldview of gender roles in society. the present study investigated the status of sexism in two sets of efl textbooks, one developed by non-native iranian authors (ili series) and the other by native authors (top notch series). first, two books from each series was selected randomly. then, a quantitative analysis was carried out wi...

2007
TIM COCHRAN SHELLY HARVEY

We prove that groups that are Zp-homology equivalent are isomorphic modulo any term of their derived p-series, in precise analogy to Stallings’ 1963 result for the p−lower-central series. In fact we prove a stronger theorem that is analogous to Dwyer’s extensions of Stallings’ results. Similarly, spaces that are Zp-homology equivalent have isomorphic fundamental groups modulo any term of their ...

Journal: :Proceedings of the American Mathematical Society 1956

2005
TIM COCHRAN

In 1964, John Stallings established an important relationship between the low-dimensional homology of a group and its lower central series. We establish a similar relationship between the low-dimensional homology of a group and its derived series. We also define a solvable completion of a group that is analogous to the Malcev completion, with the role of the lower central series replaced by the...

Journal: :Illinois Journal of Mathematics 1961

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