K-Homology of the Rotation Algebras $A_{heta}$

[摘要] We study the K-homology of the rotation algebras$A_{heta}$ using the six-term cyclic sequencefor the K-homology of a crossed product by${f Z}$. In the case that $heta$ is irrational,we use Pimsner and Voiculescu's work on AF-embeddingsof the $A_{heta}$ to search for the missinggenerator of the even K-homology.

[学科分类] 数学（综合）