6,177 research outputs found

    The action of the primitive Steenrod-Milnor operations on the modular invariants

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    We compute the action of the primitive Steenrod-Milnor operations on generators of algebras of invariants of subgroups of general linear group GL_n=GL(n,F_p) in the polynomial algebra with p an odd prime number.Comment: This is the version published by Geometry & Topology Monographs on 14 November 200

    On Pre- and Post-Disciplinarity in (Cultural) Political Economy

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    For some time now we have been working both individually and together on a new approach to political economy that does not fit neatly into the standard ways of thinking about political economy as a discipline. Instead, we describe our shared approach as pre-disciplinary in its historical inspiration and post-disciplinary in its current intellectual implications. Of course, we are not alone in refusing disciplinary boundaries and decrying some of their effects. Indeed, there are many signs of increasing commitment among social scientists to transcending such boundaries to better understand the complex interconnections within and across the natural and social worlds. We advocate the idea of a 'cultural political economy' and suggest how it might transform understandings of recent developments in political economy. Before doing so, however, we will situate our proposals for cultural political economy in the broader context of exciting recent developments in political economy

    High-directivity acoustic antenna

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    Acoustic antenna with unique electronic steering control is used to identify and define aerodynamic noise sources in free field, particularly in wind tunnel which is quite reverberant. Provision is made for high directivity as well as improved discrimination against unwanted background noise such as reverberation or echoes
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