Envíos recientes

  • Optimal dynamic spatial sampling 

    Bohorquez, M.; Giraldo, Ramón; Mateu Mahiques, Jorge (John Wiley & Sons Ltd, 2016)
    This paper provides new tools for dynamic spatial sampling designs to find the optimal spatial mean estimation and the optimal spatial prediction, based on the temporal variation of the spatial dependence structure. We ...
  • On the Isotropic Constant of Random Polytopes 

    Alonso Gutiérrez, David; Litvak, Alexander E.; Tomczak-Jaegermann, Nicole (Springer VerlagMathematica Josephina, Inc., 2015-01)
    Let X1,…,XN be independent random vectors uniformly distributed on an isotropic convex body K ⊂ Rn, and let KN be the symmetric convex hull of Xi’s. We show that with high probability LKN ≤ C√log(2N/n), where C is an ...
  • Smooth functions with uncountably many zeros 

    Conejero, J. A.; Muñoz-Fernández, G. A.; Murillo-Arcila, Marina; Seoane-Sepúlveda, J. B. (Sociéte Mathématique de Belgique, 2015)
    In this short note we show that there exist uncountably generated algebras every non-zero element of which is a smooth function having uncountably many zeros. This result complements some recent ones by En o et al.
  • Two algorithms to construct a consistent first order theory of equilibrium figures of close binary systems 

    López Ortí, José Antonio; Forner Gumbau, Manuel; Barreda Rochera, Miguel (Elsevier, 2016-12)
    One of the main problems in celestial mechanics is the study of the shape adopted by extended deformable celestial bodies in its equilibrium configuration. In this paper, a new point of view about classical theories on ...
  • Inhomogeneous K-function for germ–grain models 

    Gallego, María Ángeles; Ibáñez, María Victoria; Simó Vidal, Amelia (Elsevier, 2016)
    In this paper, we propose the definition of the inhomogeneous K-function for germ–grain models, based on the reduced second order measure for general random sets. In general, grains in a germ–grain model can overlap, ...