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    Hochschild homology invariants of K\"ulshammer type of derived categories

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    For a perfect field kk of characteristic p>0p>0 and for a finite dimensional symmetric kk-algebra AA K\"ulshammer studied a sequence of ideals of the centre of AA using the pp-power map on degree 0 Hochschild homology. In joint work with Bessenrodt and Holm we removed the condition to be symmetric by passing through the trivial extension algebra. If AA is symmetric then the dual to the K\"ulshammer ideal structure was generalised to higher Hochschild homology in earlier work. In the present paper we follow this program and propose an analogue of the dual to the K\"ulshammer ideal structure on the degree mm Hochschild homology theory also to not necessarily symmetric algebras
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