TY - JOUR AU - Patrik Wahlberg TI - Semigroups for quadratic evolution equations acting on Shubin–Sobolev and Gelfand–Shilov spaces JO - Annales Fennici Mathematici PY - 2022 SP - 821 EP - 853 VL - 47 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.54330/afm.119820/ DO - 10.54330/afm.119820 LA - en ID - AFM_2022_47_2_a10 ER -