In this paper we give a certain classification theorem of extensions of the torus algebra up to isomorphism and also show that the K 0 -group K 0 (E) and the semigroup V (E) are two complete invariants of such extensi...In this paper we give a certain classification theorem of extensions of the torus algebra up to isomorphism and also show that the K 0 -group K 0 (E) and the semigroup V (E) are two complete invariants of such extension algebras.展开更多
基金supported by National Natural Science Foundation of China (Grant No. 10626031)Natural Science Foundation of Shandong Province (Grant No. Y2006A03)the Scientific Research Project of the Department of Education of Shandong Province (Grant No. J08LI15)
文摘In this paper we give a certain classification theorem of extensions of the torus algebra up to isomorphism and also show that the K 0 -group K 0 (E) and the semigroup V (E) are two complete invariants of such extension algebras.
