981 research outputs found

    Hamiltonian Analysis of Non-Linear Sigma Model on Supercoset Target

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    This paper is devoted to the study of the Hamiltonian formulation of non-linear sigma models on supercoset targets. We calculate the Poisson brackets of left-invariant currents. Then we introduce the Hamiltonian of the system and determine the equations of motion for left-invariant currents. We also determine the charge corresponding to the invariance of the action under global left multiplication.Comment: 17. pages,v2: references added, v3: references added, minor correction

    Toxicity of some organic biocides to exotic carp fingerlings Hypophthalmichthys molitrix (C and V)

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    A bioassay study was conducted using three organic pesticides to determine their comparative toxicity to fingerlings of Hypophthalmichthys molitrix. There was wide variation in the toxicity of different pesticides with 24 hr LC sub(50) values ranging from 0.000403 to 0.294 mg/l. Endosulfan appeared to be the most toxic, whereas BHC was the least

    Two Graviton Production at e+ee^+e^- and Hadron Hadron Colliders in the Randall-Sundrum Model

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    We compute the pair production cross section of two Kaluza Klein modes in the Randall-Sundrum model at e+ee^+e^- and hadron hadron colliders. These processes are interesting because they get dominant contribution from the graviton interaction at next to leading order. Hence they provide a nontrivial test of the low scale gravity models. All the Feynman rules at next to leading order are also presented. These rules may be useful for many phenomenological applications including the computation of higher order loop corrections.Comment: 24 pages, 11 figures, some typos correcte

    Is bastaardering tussen zomer- en wintereik een gevaar voor de vitaliteit van eiken

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    Over het begrip soort bij zomereik en wintereik (twee soorten of één soot met twee ecotypen), de morfologische verschillen, het voorkomen van soorten met intermediaire morfologische kenmerken in gemengde eikenbossen, en de vraag of hierbij sprake is van echte hybriden of niet. Kruisingsexperimenten en internationaal onderzoek naar de genetische diversiteit met behulp van bladkenmerken lossen het probleem van de bastaardisering tussen zomer- en wintereiken in Europa niet op; ouderschapsanalyse met behulp van DNA-technologie moet uitkomst brenge

    Characterization of matrix transformation of complex uncertain sequences via expected value operator

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    The aim of this paper is to study the concept of matrix transformation between complex uncertain sequences in mean. The characterization of the matrix transformation has been made by applying the concept of convergence of complex uncertain series. Moreover, in this context, some well-known theorems of real sequence spaces have been established by considering complex uncertain sequence via expected value operator

    On statistically convergent complex uncertain sequences

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    In this paper, we extend the study of statistical convergence of complex uncertain sequences in a given uncertainty space. We produce the relation between convergence and statistical convergence in an uncertain environment. We also initiate statistically Cauchy complex uncertain sequence to prove that a complex uncertain sequence is statistically convergent if and only if it is statistically Cauchy. We further characterize a statistically convergent complex uncertain sequence via boundedness and density operator

    Choice of estimator for distribution system state estimation

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    The Classical Exchange Algebra of AdS5 x S5 String Theory

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    The classical exchange algebra satisfied by the monodromy matrix of AdS5 x S5 string theory in the Green-Schwarz formulation is determined by using a first-order Hamiltonian formulation and by adding to the Bena-Polchinski-Roiban Lax connection terms proportional to constraints. This enables in particular to show that the conserved charges of this theory are in involution. This result is obtained for a general world-sheet metric. The same exchange algebra is obtained within the pure spinor description of AdS5 x S5 string theory. These results are compared to the one obtained by A. Mikhailov and S. Schaefer-Nameki for the pure spinor formulation.Comment: 37 pages; v2: Result on Jacobi identity and Yang-Baxter equation added in section 3.3; v3: References added; v4: Comparison with ref [12] clarified in section 3.

    Note About Integrability and Gauge Fixing for Bosonic String on AdS(5)xS(5)

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    This short note is devoted to the study of the integrability of the bosonic string on AdS(5)xS(5) in the uniform light-cone gauge. We construct Lax connection for gauge fixed theory and we argue that it is flat.Comment: 17 page
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