Potentials in low dimensional and semi-infinite crystals

MPI PKS, Nöthnitzer Str., D-01187 Dresden
E-mail: frank.mertins(at)sdm.de

Received 15 September 1998, revised 6 November 1998, accepted 23 November 1998 by B. Kramer

Chiral Supergravity and Anomalies

Departamento de Fisica, Universidad Autonoma Metropolitana-Iztapalapa, P.O. Box 55-534, 09340 Mexico D.F., Mexico
E-mail: ekke(at)xanum.uam.mx, amac@xanum.uam.mx

Received 5 November 1998, revised 2 February 1999, accepted 22 February 1999 by F. W. Hehl

Consistent field equations for higher spin on curved spacetimes

E-mail: schimmin(at)rz.uni-greifswald.de

Received 17 December 1998, accepted 1 March 1999 by K. Fredenhagen

Hamilton formalism and variational principle construction

Technical University of Budapest, Department of Chemical Physics, H-1521 Budapest, Hungary

Received 13 October 1998, accepted 3 March 1999 by K. Fredenhagen