Jacobi-Zariski Exact Sequence for Hochschild Homology and Cyclic (Co)Homology

Details Jacobi-Zariski Exact Sequence for Hochschild Homology and Cyclic (Co)Homology Jacobi-Zariski Exact Sequence for Hochschild Homology and Cyclic (Co)Homology

2011-03-22

arxiv.org/abs/1103.4377v2

Mathematics

K-Theory and Homology

Scientific paper

We prove that for an inclusion of unital associative but not necessarily commutative algebras $B\subseteq A$ we have long exact sequences in Hochschild homology and cyclic (co)homology akin to the Jacobi-Zariski sequence in Andr\'e-Quillen homology, provided that the quotient $B$-module $A/B$ is flat. We also prove that for an arbitrary r-flat morphism $f:B\to A$ with an H-unital kernel, one can express the Wodzicki excision sequence and the corresponding Jacobi-Zariski sequence in Hochschild homology and cyclic (co)homology as a single long exact sequence.

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