FIZIKA B 2 (1993) 2,  99-106

ON TWO-PARAMETER DEFORMATIONS OF SU(1,1) ALGEBRA AND ASSOCIATED SPIN CHAINS

STJEPAN MELJANAC
Ru�er Bo�kovi� Institute, Bijeni�ka c. 54, 41001 Zagreb, Croatia
and
MARIJAN MILEKOVI�
Faculty of Science, Department of Theoretical Physics,
Bijeni�ka c. 32, 41000 Zagreb, Croatia

Received 12 February 1993

Using Fadeev-Reshetikhin-Takhtajan procedure, we analyse conditions under which two ``quantum'' SU(1,1) superalgebras are isomorphic as Hopf algebras. In the light of this results we discuss spin chains invariant under multiparameter SU(1,1).

UDC 53.01:512

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