%0 Journal Article %T Two types of Poisson pencils and related quantum objects %A D. Gurevich %A J. Donin %A V. Rubstov %J Mathematics %D 1997 %I arXiv %X Two types of Poisson pencils connected to classical R-matrices and their quantum counterparts are considered. A representation theory of the quantum algebras related to some symmetric orbits in $sl(n)^*$ is constructed. A twisted version of quantum mechanics is discussed. %U http://arxiv.org/abs/q-alg/9703042v1