Nonstandard Poincare and Heisenberg Algebras
arXiv:q-alg/9606003
Abstract
New deformations of the Poincare group $Fun(P(1+1))$ and its dual enveloping algebra $U(p(1+1))$ are obtained as a contraction of the $h$-deformed (Jordanian) quantum group $Fun(SL_h(2))$ and its dual. A nonstandard quantization of the Heisenberg algebra $U(h(1))$ is also investigated.
latex file, 8 pages, proposition 4 modified, one reference added