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hep-th1997
Free strings in non-critical dimensions
M. Daszkiewicz, Z. Hasiewicz, Z. Jaskolski
The paper containes a classification of consistent free string models in physical dimensions and a brief discussion of recent results concerning relations between various models.
hep-th1994
Non--commutative Group Manifolds
Z. Hasiewicz, P. Siemion
We show that a chiral sector of a symplectic group manifold possesses a symmetry similar to, but somewhat weaker than the Lie--Poisson one.