نتایج جستجو برای: 2006 empirical results demonstrate a u
تعداد نتایج: 13830789 فیلتر نتایج به سال:
this thesis basically deals with the well-known notion of the bear-invariant of groups, which is the generalization of the schur multiplier of groups. in chapter two, section 2.1, we present an explicit formula for the bear-invariant of a direct product of cyclic groups with respect to nc, c>1. also in section 2.2, we caculate the baer-invatiant of a nilpotent product of cyclic groups wuth resp...
in chapter one we will describe definitions and preliminary results to provide the global context of our own results to be presented in detail in the subsequent chapters in chapter two we consider degree-one maps of the circle and we study their rotation set. our main result in this chapter says that if the map is topologically mixing then its rotation interval is nontrivial (that is, not reduc...
Theoretical relative ages of galactic globular clusters have recently been challenged by a semi-empirical relation. It was used to point out that tested sets of isochrones were unable to reproduce the relation and yield internally inconsistent relative ages. We find that differential cluster ages derived with the isochrones by Salaris & Weiss (1998) are reliable and internally consistent. We al...
در این پایان نامه یک روش طیفی لژاندر هم محلی برای حل یک نوع معادله دیفرانسیل تاخیری از نوع پانتوگرافی به فرم u(x) = a(x) u(qx) u(0) = y0 ارائه می کنیم. که در آن 0 < q < 1 یک ثابت مفروض و a(x) یک تابع هموار روی [0 ,t] است. برای سهولت روش طیفی را روی بازه استاندارد i = [-1 , 1] شرح داده و تجزیه تحلیل خواهیم کرد. بعلاوه، همگرایی آن را نیز مورد بررسی قرار می دهیم....
the purpose of this study was to examine the status of supervision on departments’ heads at ferdowsi university of mashhad (fum) and realize some applied themes to provide a fit model for supervising departments’ heads in fum. the method was case study under a research category aimed for applied one. using purposive sampling, interviews were conducted with top fum managers, head departments, an...
deposite the different criticisms on contrastive analysis it has been proved that the results of it(when processed)can be usuful in a tefl environment,specially at the level of phonology.this study is an attempt to compare and contrast the sound systems of kurdish and english for pedagogical aims. the consonants,vowels,stress and intonation of the twolanguages are described by the same model-ta...
In this paper we study U-statistics with side information incorporated using the method of empirical likelihood. Some basic properties of the proposed statistics are investigated. We find that by implementing the side information properly, the proposed U-statistics can have smaller asymptotic variance than the existing U-statistics in the literature. The proposed U-statistics can achieve asympt...
today, information technology and computers are indispensable tools of any profession and translation technologies have become an indispensable part of translator’s workstation. with the increasing demands for high productivity and speed as well as consistency and with the rise of new demands for translation and localization, it is necessary for translators to be familiar with market demands an...
در این پایان نامه، نشان می دهیم اگر $x,y$ اعضای $c^*$-مدول هیلبرت باشند، آنگاه نامساوی مثلثی $|x+y|leq |x|+|y|$ لزوما برقرار نیست. ثابت می کنیم که برای هر دو عنصر $x,y$ در $c^*$-مدول هیلبرت $v$ روی $c^*$-جبر $mathcal{a}$, تساوی مثلثی برقرار است اگر و تنها اگر $langle x,y angle =|x|: |y|$. به علاوه اگر $mathcal{a}$ دارای عضو همانی $e$ باشد، آنگاه برای هر $x,yin v...
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