The condition order spectrum

الملخص EN

In this paper, we will study the relation between complex character f and the condition order spectrum 〖SP〗_ε (a) in real and complex ordered Banach algebra A .We prove many properties on it,s .

afterwards, we prove that 〖SP〗_ε (a) is upper semi continuous Finally we will show the relation between condition Quasinilpotent 〖QN〗_ε (A) and the radical .