3,417 research outputs found

    Inductive McKay Condition in defining Characteristic

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    We reformulate the inductive McKay condition, from Isaacs-Malle-Navarro, and apply the new criterion to simple groups of Lie type, when the prime is the defining characteristic p. Thereby we make use of a recent result of Maslowski. This proves that these simple group satisfy the inductive McKay condition for p. In the non simply-laced types and non-classical types this reproves earlier results by Brunat and Brunat-Himstedt.Comment: 12 page

    Sooty blotch of apple: Efficacy of different application strategies

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    Sooty blotch causes heavy losses in Lake Constance organic apple production. In the last five years research has been done at the research station for fruit growing (Kompetenzzentrum Obstbau – Bodensee) on strategies to control Sooty blotch on organic grown pome fruit. Different control strategies with lime sulphur, coconut soap and potassium bicarbonate with different application rates, application times were tested in several trials on the cultivar ‘Topaz’. Over the years the results show that lime sulphur has significant effects in controlling Sooty blotch. In a first trial potassium bicarbonate showed a promising efficacy against Sooty blotch. Concerning the right application times we need further investigations. The problem is that Sooty blotch is a disease complex caused by several fungi and it is likely that the fungi that are a part of the complex differ from area to area

    Spartacus - MĂ€nnermuskeln, Heldenbilder oder: die Befreiung der Moral

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    "Spartacus", das ist der Mann mit dem entschlossenen Blick aus stahlblauen Augen, ein Gesicht mit klassisch-gerader Nase und darunter ein eckiges Kinn mit unĂŒbersehbarem GrĂŒbchen, ein Körper mit muskolösen nackten Armen und Schenkeln - "Spartacus" ist fĂŒr viele der Filmschauspieler Kirk Douglas in einer seiner bekanntesten Rollen, in Spartacus von Stanley Kubrick (USA, 1960)

    Invariant blocks under coprime actions

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    If a finite group AA acts coprimely as automorphisms on a finite group GG, then the AA-invariant Brauer pp-blocks of GG are exactly those that contain AA-invariant irreducible characters

    Least squares fitting with rotated paraboloids

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    In [1] the problem of estimating the parameters of a rotated parabola fitted to measured points in the plane was examined. The corresponding method, also used in [2,3], is extended here to the case of a rotated paraboloid. Fitting by such a surface occurs in computational metrology e.g. when some parabolic reflector will be checked to be a good one

    Least-squares fitting of parametric curves with a linear function of several variables as argument

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    We discuss fitting of a parametric curve in the plane in the least-squares sense when the independent variable is a linear function of several variables with unknown coefficients. A general numerical method is recommended. For two special models the algorithmic details and numerical examples are given

    Fitting affine and orthogonal transformations between two sets of points

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    Let two point sets P and Q be given in RnR^n. We determine a translation and an affine transformation or an isometry such that the image of Q approximates P as best as possible in the least squares sense
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