摘要:

We discuss the concept of composite fields in flat CFT as well as in the context of AdS/CFT. Furthermore we show how to represent Green functions using generalized hypergeometric functions and apply these techniques to four-point functions. Finally we prove an identity ofU(1)Ysymmetry for four-point functions. ©2001 American Institute of Physics.

ISSN:0094-243X    

DOI:10.1063/1.1419341

出版商:AIP    

年代:1901

数据来源: AIP

摘要:

©2001 American Institute of Physics.

ISSN:0094-243X    

DOI:10.1063/1.1419342

出版商:AIP    

年代:1901

数据来源: AIP

摘要:

We give an overview of research work on the problem of relation between domain walls and membranes. ©2001 American Institute of Physics.

ISSN:0094-243X    

DOI:10.1063/1.1419343

出版商:AIP    

年代:1901

数据来源: AIP

摘要:

We present and discus the results of [1], [2] and [3]. There we have shown that, for a suitable range of parameters, the two dimensional discrete equations describing a quasiparticle interacting with the displacements of a lattice of atoms possess solitonic solutions. ©2001 American Institute of Physics.

ISSN:0094-243X    

DOI:10.1063/1.1419344

出版商:AIP    

年代:1901

数据来源: AIP

摘要:

The closed two-form is presented whose cohomological class coincides with the Fedosov class of the Wick-type star-product. For the case of the Ka¨hler manifold this class is shown to be related to the first Chern class. In particular, we prove that the Wick type star-product on a Ka¨hler manifold is equivalent to that of the Weyl type if the manifold is the Calabi-Yau one. ©2001 American Institute of Physics.

ISSN:0094-243X    

DOI:10.1063/1.1419345

出版商:AIP    

年代:1901

数据来源: AIP

摘要:

The coupled KdV–mKdV system arises as the classical part of one of superextensions of the KdV equation. For this system, we prove its complete integrability, i.e., existence of a recursion operator and of infinite series of symmetries. After giving a short introduction into the theory of symmetries, coverings, and the notion of Cartan-covering, the recursion operator will be constructed as a symmetry in the Cartan covering of the KdV–mKdV system. ©2001 American Institute of Physics.

ISSN:0094-243X    

DOI:10.1063/1.1419346

出版商:AIP    

年代:1901

数据来源: AIP

摘要:

The division algebrasR,C,H,Oare used to construct and analyze theN=1,2, 4, 8 supersymmetric extensions of the KdV hamiltonian equation. In particular a globalN=8super-KdV system is introduced and shown to admit a Poisson bracket structure given by the “Non-AssociativeN=8Superconformal Algebra.” ©2001 American Institute of Physics.

ISSN:0094-243X    

DOI:10.1063/1.1419347

出版商:AIP    

年代:1901

数据来源: AIP