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arXiv · 1403.4726

Classical derived functors as fully faithful embeddings

Pedro Nicolas·Manuel Saorin
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Abstract

Given associative unital algebras $A$ and $B$ and a complex $T^\bullet$ of $B-A-$bi\-modules, we give necessary and sufficient conditions for the total derived functors, $\Rh_A(T^\bullet,?):\D(A)\longrightarrow\D(B)$ and $?\Lt_BT^\bullet:\D(B)\longrightarrow\D(A)$, to be fully faithful. We also give criteria for these functors to be one of the fully faithful functors appearing in a recollement of derived categories. In the case when $T^\bullet$ is just a $B-A-$bimodule, we connect the results with (infinite dimensional) tilting theory and show that some open question on the fully faithfulness of $\Rh_A(T,?)$ is related to the classical Wakamatsu tilting problem.

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BibTeXRIS

Pedro Nicolas, Manuel Saorin. 2014-03-19. Classical derived functors as fully faithful embeddings. https://arxiv.org/abs/1403.4726

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