Steklov Institute of Mathematics at St.Petersburg

PREPRINT 22/2003

DEFORMATION OF ORTHOSYMPLECTIC LIE SUPERALGEBRA $osp(1|4)$

This preprint was accepted December 25, 2003

ABSTRACT:
orthosymplectic Lie superalgebra $osp (1|4)$ is defined by chains of
twists. Corresponding classical $r$-matrix is obtained by a contraction
procedure from the trigonometric $r$-matrix. The carrier space of the
constant $r$-matrix is the Borel subalgebra.