Abstract:
ln commutative f-semrrings, the definltion of 2-absorbing ideals, 2-absorbing primary ideal.s and 2-absorbing d-primary ideal's which are generalizations of prime ldeal.s are given. Then, various propertres of 2-absorbing primary idea[s and 2-absorbrng d-primary ideals are investrgated. Moreover, characterizations of ideals to be 2- absorbing primary ideal.s and 2-absorbing d-primary idea[s are provided.