PARALLEL SURFACES TO S-TANGENT SURFACES OF BIHARMONIC S-CURVES ACCORDING TO SABBAN FRAME IN HEISENBERG GROUP HEIS[sup]3[/sup][sup][/sup] Journal title: Journal of Science And Arts Authors: TALAT KĂ–RPINAR, ESSIN TURHAN Subject(s): Chemistry, Mathematics, Physics, Analytical Chemistry, Inorganic Chemistry, Organic Chemistry, Physical Chemistry, Nuclear Physics, Science