نتایج جستجو برای: have always brought about security challenge

تعداد نتایج: 3825509  

2000
M. Mansour

Using a general formalism of a q-deformation of an arbitrary Lie algebra, new kinds of qdeformed centerless Virasoro and U(1) Kac-Moody algebras are found. This q-deformation is associated to an R-matrix of unit square satisfying the quantum Yang-Baxter equation and allows a nontrivial Hopf structure. The central extension is also incorporated in this formalism. MIRAMARE { TRIESTE August 1998 J...

2008
Mark Walton

These lecture notes are a brief introduction to Wess-Zumino-Witten models, and their current algebras, the affine Kac-Moody algebras. After reviewing the general background, we focus on the application of representation theory to the computation of 3-point functions and fusion rules.

2006
Hongjia Chen Yun Gao

We use fermionic representations to obtain a class of BC N -graded Lie algebras coordinatized by quantum tori with nontrivial central extensions. 0 Introduction Lie algebras graded by the reduced finite root systems were first introduced by Berman-Moody [BM] in order to understand the generalized intersection matrix algebras of Slodowy. [BM] classified Lie algebras graded by the root systems of...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1390

teachers beliefs have usually been left unattended in the realm of educational research in iranian context. one of those beliefs which seems to impact teachers performance in the classroom is their sense of self-efficacy, which refers to teachers belief in their ability to enhance student achievement and in bringing about positive learning outcomes. the present study aimed to investigate the pr...

Journal: :Journal of the Intensive Care Society 2010

Journal: :The Journal of Clinical Dentistry 2002

Journal: :Behavior Analysis in Practice 2015

Journal: :Mediterranean Journal of Social Sciences 2013

Journal: :Issues in ethnology and anthropology 2023

This paper problematises the justification of ‘postist’ revisions humanism. In first part paper, a line thought that persistently marks self-perception man is presented. It stretches from Plato, through Pico della Mirandola and Kant, all way to existentialism philosophical anthropology in twentieth century. it, understood as chronically deficient their own ‘nature’ or ‘essence’, his privileged ...

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