نتایج جستجو برای: coherent formulation

تعداد نتایج: 169039  

1970
AMOS DE-SHALIT

We investigate the question of independent and coherent production of pions in high energy processes. A model for coherent production is suggested and the restrictions due to momentum conservation, charge conservation, and isospin conservation are dealt with in detail. A formalism for the isospin analysis of identical pions is developed and applied to coherent states. Results and consequences a...

Journal: :Mathematische Annalen 2022

We establish the relationship between cohomology of a certain sheaf on intersection lattice hyperplane arrangement introduced by Yuzvinsky and coherent punctured affine space, respectively projective space associated to module logarithmic vector fields along arrangement. Our main result gives Künneth formula connecting theories, answering question Yoshinaga. This, in turn, provides characteriza...

1998
Abhay Ashtekar Troy A. Schilling

States of a quantum mechanical system are represented by rays in a complex Hilbert space. The space of rays has, naturally, the structure of a Kähler manifold. This leads to a geometrical formulation of the postulates of quantum mechanics which, although equivalent to the standard algebraic formulation, has a very different appearance. In particular, states are now represented by points of a sy...

Journal: :CoRR 2014
Lionel Ott Linsey Xiaolin Pang Fabio Tozeto Ramos David Howe Sanjay Chawla

In this paper we present methods for exemplar based clustering with outlier selection based on the facility location formulation. Given a distance function and the number of outliers to be found, the methods automatically determine the number of clusters and outliers. We formulate the problem as an integer program to which we present relaxations that allow for solutions that scale to large data...

پایان نامه :0 1374

the research questions were as follows: 1. is there any relationship between the students concious awareness of the form and implications of the conjuncations and their improvement in using appropriate conjunctions? 2. does students knowledge of the from and the implications of the conjunctions help them to produce more coherent writings. 3. does a comparison between english conjunctions and th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1388

cette recherche est effectuée dans le domaine de la pragmatique contrastive et dans une perspective interculturelle. elle consiste en une étude approfondie des expressions de vœu en français et en persan, basée sur un corpus comprenant les formulations votives orales et écrites. dans une première étape, l’analyse du corpus a révélé les structures votives dans les deux langues, plus précisément ...

1997
Abhay Ashtekar Troy A. Schilling

States of a quantum mechanical system are represented by rays in a complex Hilbert space. The space of rays has, naturally, the structure of a KK ahler manifold. This leads to a geometrical formulation of the postulates of quantum mechanics which, although equivalent to the standard algebraic formulation , has a very diierent appearance. In particular, states are now represented by points of a ...

Journal: :فیزیک کوانتومی 0

in this paper, lagrangian and equations describing one-dimensional anisotropic non-heisenberg model are studied. in this study we used the generalized coherent states in real parametrizations and the feynman path integral for these states in su(3) group. these equations describe nonlinear dynamics of non-heisenberg ferromagnetic chain completely. solutions of these equations are magnetic solito...

Journal: :Symmetry 2021

In this pedagogical article, we explore a powerful language for describing the notion of spacetime and particle dynamics intrinsic to given fundamental physical theory, focusing on special relativity its Newtonian limit. The starting point formulation is representations symmetries. Moreover, that seriously furnishes—via symmetry contractions—a natural way in which one can understand how theory ...

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