22 research outputs found

    Gauge Symmetries on θ\theta-Deformed Spaces

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    A Hamiltonian formulation of gauge symmetries on noncommutative (θ\theta deformed) spaces is discussed. Both cases- star deformed gauge transformation with normal coproduct and undeformed gauge transformation with twisted coproduct- are considered. While the structure of the gauge generator is identical in either case, there is a difference in the computation of the graded Poisson brackets that yield the gauge transformations. Our analysis provides a novel interpretation of the twisted coproduct for gauge transformations.Comment: LaTex, 20 pages, no figure

    Properties of Solutions in 2+1 Dimensions

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    We solve the Einstein equations for the 2+1 dimensions with and without scalar fields. We calculate the entropy, Hawking temperature and the emission probabilities for these cases. We also compute the Newman-Penrose coefficients for different solutions and compare them.Comment: 16 pages, 1 figures, PlainTeX, Dedicated to Prof. Yavuz Nutku on his 60th birthday. References adde

    Topics in Noncommutative Geometry Inspired Physics

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    In this review article we discuss some of the applications of noncommutative geometry in physics that are of recent interest, such as noncommutative many-body systems, noncommutative extension of Special Theory of Relativity kinematics, twisted gauge theories and noncommutative gravity.Comment: New references added, Published online in Foundations of Physic

    Non-ionic Thermoresponsive Polymers in Water

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    L'usage efficient des antidépressuers dans le traitement d'indications autres que les troubles dépressifs

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    La présente réunion de consensus suit la réunion dédiée à leur utilisation dans la dépression et concerne les autres indications officielles, celles figurant dans la notice scientifique, de tous ou de certains médicaments antidépresseurs : les troubles anxieux (le trouble de stress post-traumatique, le trouble obsessionnel compulsif, le trouble panique, la phobie sociale et le trouble de l’anxiété généralisée), certaines neuropathies périphériques (diabétiques, post-herpétiques), l’énurésie nocturne, la boulimie nerveuse. Nous y avons ajouté un thème, celui de l’insomnie, hors indication officielle des antidépresseurs mais pour laquelle, selon des enquêtes de prescriptions, certains antidépresseurs sont régulièrement prescrits. Hormis l’énurésie nocturne, cette conférence de consensus n’abordera pas le traitement chez les enfants.status: publishe
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