Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Parameter test ideals of Cohen Macaulay rings   We describe an algorithm for computing parameter-test-ideals in certain local
Cohen-Macaulay rings. The algorithm is based on the study of a Frobenius map on
the injective hull of the residue field of the ring and on the application of
Rodney Sharp's notion of ``special ideals''.
  Our techniques also provide an algorithm for computing indices of nilpotency
of Frobenius actions on top local cohomology modules of the ring and on the
injective hull of its residue field. The study of nilpotent elements on
injective hulls of residue fields also yields a great simplification of the
proof of the fact that for a power series ring $R$ of prime characteristic, for
all nonzero $f\in R$, $1/f$ generates $R_f$ as a $D_R$-module.

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The categories of this paper are: q-bio
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The categories of this paper are: dg-ga
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The categories of this paper are: atom-ph
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The categories of this paper are: cs
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The categories of this paper are: adap-org
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-th
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The categories of this paper are: physics
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The categories of this paper are: stat
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ph
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The categories of this paper are: supr-con
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The categories of this paper are: funct-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-ex
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The categories of this paper are: nucl-th