TY - JOUR AU - Aymen Ammar AU - Aref Jeribi AU - Bilel Saadaoui TI - Fredholm linear relation and some results of demicompact for multivalued matrix linear operator JO - Filomat PY - 2023 SP - 1507 VL - 37 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.2298/FIL2305507A/ DO - 10.2298/FIL2305507A LA - en ID - 10_2298_FIL2305507A ER -