TY - JOUR AU - Paweł Głowacki TI - A calculus of symbols and convolution semigroups on the Heisenberg group JO - Studia Mathematica PY - 1982 SP - 291 EP - 321 VL - 72 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-72-3-291-321/ DO - 10.4064/sm-72-3-291-321 LA - en ID - 10_4064_sm_72_3_291_321 ER -