AU - Doagooei, A. R. AU - Mohebi, H. TI - Sum Formula for Maximal Abstract Monotonicity and Abstract Rockafellar’s Surjectivity Theorem PT - JOURNAL ARTICLE TA - IJMSI JN - IJMSI VO - 8 VI - 2 IP - 2 4099 - http://ijmsi.ir/article-1-507-en.html 4100 - http://ijmsi.ir/article-1-507-en.pdf SO - IJMSI 2 AB  - In this paper, we present an example in which the sum of two maximal abstract monotone operators is maximal. Also, we shall show that the necessary condition for Rockafellar’s surjectivity which was obtained in ([19], Theorem 4.3) can be sufficient. CP - IRAN IN - LG - eng PB - IJMSI PG - 85 PT - Research paper YR - 2013