RT - Journal Article T1 - A K-Theoritic Approach to Some C*-Algebras JF - IJMSI YR - 2009 JO - IJMSI VO - 4 IS - 2 UR - http://ijmsi.ir/article-1-87-en.html SP - 25 EP - 31 K1 - C*-algebra K1 - K-theory K1 - Exact group K1 - Crossed Product K1 - and Representation. AB - In this paper we look at the K-theory of a specific C*-algebra closely related to the irrational rotation algebra. Also it is shown that any automorphism of a C*-algebra A induces group automorphisms of K_{1}(A) amd K_{0}(A) in an obvious way. An interesting problem for any C*-algebra A is to find out whether, given an automorphism of K_{0}(A) and an automorphism of K_{1}(A), we can lift them to an automorphism of A or M_{n}(A) for some positive integer n. LA eng UL http://ijmsi.ir/article-1-87-en.html M3 10.7508/ijmsi.2009.02.003 ER -