16,969 research outputs found

    The Prime Spectrum and Representation Theory of the 2×22\times 2 Reflection Equation Algebra

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    The theory of generalized Weyl algebras is used to study the 2×22\times 2 reflection equation algebra A=Aq(M2)\mathcal{A}=\mathcal{A}_q(\operatorname{M}_2) in the case that qq is not a root of unity, where the RR-matrix used to define A\mathcal{A} is the standard one of type AA. Simple finite dimensional A\mathcal{A}-modules are classified, finite dimensional weight modules are shown to be semisimple, Aut(A)\operatorname{Aut}(\mathcal{A}) is computed, and the prime spectrum of A\mathcal{A} is computed along with its Zariski topology. Finally, it is shown that A\mathcal{A} satisfies the Dixmier-Moeglin equivalence

    Weak amenability and 2-weak amenability of Beurling algebras

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    Let L^1_\om(G) be a Beurling algebra on a locally compact abelian group GG. We look for general conditions on the weight which allows the vanishing of continuous derivations of L^1_\om(G). This leads us to introducing vector-valued Beurling algebras and considering the translation of operators on them. This is then used to connect the augmentation ideal to the behavior of derivation space. We apply these results to give examples of various classes of Beurling algebras which are weakly amenable, 2-weakly amenable or fail to be even 2-weakly amenable.Comment: 25 page

    Placing the Normative Logics of Accountability in Thick Perspective

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    This paper provides a critical reflection on the heavily normative nature of current accountability debates. In particular, three streams of normative discourse on nonprofit accountability are identified: improving board governance; improving performance-based reporting; and, demonstrating progress towards mission. A focus on these normative logics, while important, can mask the realities of social structure and the relations of power that underlie them. The paper thus proposes a more empirical approach to framing accountability problems thick description and interpretation that might enable us better to understand how social regimes of accountability actually operate and in which the instruments of accountability are at least as likely to reproduce relationships of inequality as they are to overturn them.This publication is Hauser Center Working Paper No. 33.2. Hauser Working Paper Series Nos. 33.1-33.9 were prepared as background papers for the Nonprofit Governance and Accountability Symposium October 3-4, 2006

    Divine Love and the Argument from Divine Hiddenness

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    This paper criticizes one of the premises of Schellenberg’s atheistic argument from divine hiddenness. This premise, which can be considered as the foundation of his proposed argument, is based on a specific interpretation of divine love as eros. In this paper I first categorize several concepts of divine love under two main categories, eros and agape; I then answer some main objections to the ascription of eros to God; and in the last part I show that neither on a reading of divine love as agape nor as eros can Schellenberg’s argument be construed as sound. My aim is to show that even if -- contra Nygren for example -- we accept that divine love can be interpreted as eros, Schellenberg’s argument still doesn’t work
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