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Mostrando ítems 51-60 de 169
Artículo
Mathematica and Heisenberg Type Superalgebras
(Heldermann Verlag, 2006)
With the support of software Mathematica 4.0 we obtain important properties of Heisenberg type superalgebras, this type of superalgebras corresponds to the family of Lie superalgebras that generalize Heisenberg algebras. ...
Artículo
Locating a metro line in a historical city centre: application to Sevilla
(Taylor and Francis, 2009)
When constructing a metro alignment under a historical city centre, it is important to generate a cost-effective path while maintaining a minimum distance between the alignment and historical buildings. This paper describes ...
Artículo
A particular case of extended isotopisms: Santilli's isotopisms
(Hadronic Press, 2006)
Due to a mathematical necessity, it has been proved that it is convenient to give a new interpretation of the multiplicity of Santilli's isounity Ib = Ib(x, v, t, µ, ρ, ...) of any Santilli's isotopism, as a family of ...
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On Filiform and 2-Filiform Leibniz Algebras of Maximum Length
(Heldermann Verlag, 2008)
Leibniz algebras appear as a generalization of Lie algebras. The classification of naturally graded p-filiform Lie algebras is known. Several authors have studied the naturally graded p-filiform Leibniz algebras for any ...
Artículo
The isoperimetric problem in complete annuli of revolution with increasing Gauss curvature
(Cambridge University Press, 2008)
In this work we describe the isoperimetric regions in complete symmetric annuli of revolution with Gauss curvature non-decreasing from the shortest parallel. This description allows us to complete the classification of ...
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Testing the Logarithmic Comparison Theorem for Free Divisors
(Taylor and Francis, 2004)
Artículo
Cover Contact Graphs
(2007)
We study problems that arise in the context of covering certain geometric objects (so-called seeds, e.g., points or disks) by a set of other geometric objects (a so-called cover, e.g., a set of disks or homothetic triangles). ...
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A vanishing theorem for a class of logarithmic D-modules
(Cornell University, 2007)
Let OX (resp. DX) be the sheaf of holomorphic functions (resp. the sheaf of linear differential operators with holomorphic coefficients) on X = Cn. Let D X be a locally weakly quasi-homogeneous free divisor defined by ...
Artículo
Locating a Central Hunter on the Plane
(Springer, 2007)
Protection, surveillance or other types of coverage services of mobile points call for different, asymmetric distance measures than the traditional Euclidean, rectangular or other norms used for fixed points. In this ...
Artículo
A Hopf theorem for open surfaces in product spaces
(De Gruyter, 2009)
Hopf’s theorem has been recently extended to compact genus zero surfaces with constant mean curvature H in a product space Mk 2 ×R, whereMk 2 is a surface with constant Gaussian curvature k = 0 [AbRo]. It also has ...