On the maximal ideal space of extended polynomial and rational uniform algebras

Department of Mathematics, Faculty of Science, Arak University, Arak, ۳۸۱۵۶- ۸-۸۳۴۹, Iran.

Faculty of Mathematical Sciences and Computer Engineering, Teacher Train- ing University, ۵۹۹ Taleghani Avenue, Tehran, ۱۵۶۱۸, I.R. Iran.

Department of Mathematics, Faculty of Science, Arak University, Arak, ۳۸۱۵۶- ۸-۸۳۴۹, Iran.