We prove that, for every natural number n, there exists a unital semisimple Banach star algebra A and a closed star subalgebra B of the centre of A, different from C, such that the global B-homological dimension and the B-homological bidimension of A are both equal to n. The algebras A and B can be taken to be function algebras.
机构:
Queens Univ Belfast, Pure Math Res Ctr, Belfast BT7 1NN, Antrim, North IrelandQueens Univ Belfast, Pure Math Res Ctr, Belfast BT7 1NN, Antrim, North Ireland
Young, Matthew
FUNCTION SPACES IN ANALYSIS,
2015,
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