The conformal block structure of perturbation theory in two dimensions

SIGLEAvailable from TIB Hannover: RN 5063(92-01) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

The d=2 conformally invariant SU(2) sigma-model with Wess-Zumino term and related critical theories

SIGLECopy held by FIZ Karlsruhe; available from UB/TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

On quantum mechanics with extended supersymmetry and nonabelian gauge constraints

SIGLECopy held by FIZ Karlsruhe; available from UB/TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

From N=1 to N=4 extended supersymmetric Yang-Mills fields in a covariant Wess-Zumino gauge

SIGLEDEGerman

The convergence of strongly relevant perturbations of d = 2 conformal field theories

Off-critical perturbations of two-dimensional rational conformal field theories given by scalar primary operators with scaling dimensions smaller than (1/2, 1/2) are considered. The Gell-Mann-Low expansion is shown to converge in finite volume. (orig.)This paper supersedes the preprint BONN-HE--93-03SIGLEAvailable from TIB Hannover: RN 5063(93-48) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Off-shell Bethe ansatz equation for Gaudin magnets and solutions of Knizhnik-Zamolodchikov equations

We generalize the previously established connection between the off-shell Bethe ansatz equation for inhomogeneous SU(2) lattice vertex models in the quasiclassical limit and the solutions of the SU(2) Knizhnik-Zamolodchikov equations to the case of arbitrary simple Lie algebras. (orig.)Available from TIB Hannover: RN 5063(93-30) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Knizhnik-Zamolodchikov equations and the algebraic Bethe ansatz

Wave vectors of the algebraic Bethe ansatz provide modulo integrating factors solutions of difference equations and in the quasiclassical limit solutions of linear differential equations, the so called quantum and classical Knizhnik-Zamolodchikov equations. We describe the construction and show conversely how this relationship may be used to elucidate the structure of Bethe wave vectors of integrable inhomogeneous vertex models over simple Lie algebras. (orig)Available from TIB Hannover: RR 3949(94-25) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

The four point correlations of all primary operators of the d=2 conformally invariant SU(2) sigma-model with Wess-Zumino term

SIGLECopy held by FIZ Karlsruhe; available from UB/TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

On the identification of finite operator algebras in two-dimensional conformally invariant field theories

SIGLEAvailable from Bonn Univ. (DE). Physikalisches Inst. / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Deformations along critical lines of field theories in two dimensions

SIGLEAvailable from Bonn Univ. (DE). Physikalisches Inst. / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman