TY - JOUR AU - V. A. Erovenko TI - The invariance of essential spectra of Balslev–Gamelin–Fashian differential operators in the scale of Lebesgue spaces JO - Differencialʹnye uravneniâ PY - 2000 SP - 1029 EP - 1036 VL - 36 IS - 8 UR - http://geodesic.mathdoc.fr/item/DE_2000_36_8_a2/ LA - ru ID - DE_2000_36_8_a2 ER -