TY  - JOUR
AU  - Aymen Ammar
AU  - Fatima Zohra Boutaf
AU  - Aref Jeribi
TI  - Extended eigenvalues of 2 × 2 block operator matrices
JO  - Filomat
PY  - 2023
SP  - 1377 
VL  - 37
IS  - 5
UR  - http://geodesic.mathdoc.fr/articles/10.2298/FIL2305377A/
DO  - 10.2298/FIL2305377A
LA  - en
ID  - 10_2298_FIL2305377A
ER  -