منابع مشابه
Computing Projective Indecomposable Modules and Higher Cohomology Groups
We describe the theory and implementation in Magma of algorithms to compute the projective indecomposable KG-modules for finite groups G and finite fields K. We describe also how they may be used together with dimension shifting techniques to compute cohomology groups Hn(G,M) for finite dimensional KG-modules M and n ≥ 3.
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The introduction of sorts to rst-order automated deduction has brought greater conciseness of representation and a considerable gain in eeciency by reducing the search space. It is therefore promising to treat sorts in higher order theorem proving as well. In this paper we present a generalization of Huet's Constrained Resolution to an order-sorted type theory T with term declarations. This sys...
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In aspect-oriented programming languages, advice evaluation is usually considered as part of the base program evaluation. This is also the case for certain pointcuts, such as if pointcuts in AspectJ, or simply all pointcuts in higher-order aspect languages like AspectScheme. While viewing pointcuts and advice as base level computation clearly distinguishes AOP from reflection, it also comes at ...
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The universal isol metatheorem is extended so as to deal with nonrecursive relations and countable Boolean operations.
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Motivated by a conjecture of Ellentuck concerning fibers f^x(C), f recursive and C an element of one of Barback's "tame models" (Tame models in the isols, Houston J. Math. 12 (1986), 163-175), we study such fibers in the more general context of Nerode semirings. The principal results are that (1) all existentially complete Nerode semirings meet all of their recursive fibers, and (2) not all Ner...
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ژورنال
عنوان ژورنال: Transactions of the American Mathematical Society
سال: 1966
ISSN: 0002-9947
DOI: 10.2307/1994569