Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The triangulated hull of periodic complexes   In the terms of an `$n$-periodic derived category', we describe explicitly
how the orbit category of the bounded derived category of an algebra with
respect to powers of the shift functor embeds in its triangulated hull. We
obtain a large class of algebras whose orbit categories are strictly smaller
than their triangulated hulls and a realization of the phenomenon that an
automorphism need not induce the identity functor on the associated orbit
category.

20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
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The categories of this paper are: eess
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph