3.4k citations
- National Institute for Subatomic PhysicsNL871 papers
- Centre National de la Recherche ScientifiqueFR771 papers
- University of AmsterdamNL560 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT517 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR514 papers
- University of BirminghamGB502 papers
- European Organization for Nuclear ResearchCH493 papers
- Lawrence Berkeley National LaboratoryUS484 papers
- The University of Texas at AustinUS482 papers
- Indian Institute of Technology BombayIN479 papers
- The Ohio State UniversityUS473 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR467 papers
11 papers · 2 filters
Exact string backgrounds from WZW models based on non-semi-simple groups
Konstadinos Sfetsos
We formulate WZW models based on a centrally extended version of the Euclidean group in -dimensions. We obtain string backgrounds corresponding to conformal $\s$-models in $D=d^…
Gauging a Non-Semi-Simple WZW Model
Konstadinos Sfetsos
We consider gauged WZW models based on a four dimensional non-semi-simple group. We obtain conformal $\s$-models in spacetime dimensions (with exact central charge ) by…
Environmentally Friendly Renormalization
Denjoe O'Connor, C. R. Stephens
We analyze the renormalization of systems whose effective degrees of freedom are described in terms of fluctuations which are ``environment'' dependent. Relevant environmental para…
Hidden symmetries, special geometry and quaternionic manifolds
B. de Wit, A. Van Proeyen
The moduli space of the Calabi-Yau three-folds, which play a role as superstring ground states, exhibits the same {\em special geometry} that is known from nonlinear sigma models i…
Antisymmetric tensor coupling and conformal invariance in sigma models corresponding to gauged WZNW theories
K. Sfetsos, A. A. Tseytlin
String backgrounds associated with gauged WZNW models generically depend on or . The exact expressions for the corresponding metric $G_{\m\n}$, antisymmetric tensor…
The -component KP hierarchy and representation theory
V. G. Kac, J. W. van de Leur
Starting from free charged fermions we give equivalent definitions of the $n\/$-component KP hierarchy, in terms of $τ\/$-functions $τ_α\/$ (where $α\in M =\/$ root lattice of $sl_…