Exploració per títol

Ara es mostren els items 5698-5717 de 245663

    • A note on growth of Sobolev norms near quasiperiodic finite-gap tori for the 2D cubic NLS equation 

      Guàrdia Munarriz, Marcel; Hani, Zaher; Haus, Emanuele; Maspero, Alberto; Procesi, Michela (2019-01-01)
      Article
      Accés restringit per política de l'editorial
      We present the recent result in [29] concerning strong nonlinear instability and growth of Sobolev norms near quasiperiodic finite-gap solutions of the defocusing cubic nonlinear Schrödinger equation (NLS) on the two-dimensional ...

    • A note on interval estimation for the mean of inverse Gaussian distribution 

      Arefi, M.; Mohtashami Borzadaran, G.R.; Vaghei, Y. (Institut d'Estadística de Catalunya, 2008)
      Article
      Accés obert
      In this paper, we study the interval Estimation for the mean from inverse Gaussian distribution. This distribution is a member of the natural exponential families with cubic variance function. Also, we simulate the coverage ...

    • A Note on learning decision lists 

      Castro Rabal, Jorge (1995-01)
      Report de recerca
      Accés obert
      We show an algorithm that learns decision lists via equivalence queries, provided that a set G including all terms of the target list is given. The algorithm runs in time polynomial in the cardinality of G. From this last ...

    • A note on libration point orbits, temporary capture and low-energy transfers 

      Fantino, Elena; Gómez, Gerard; Masdemont Soler, Josep; Ren, Yuan (2010-11)
      Article
      Accés restringit per política de l'editorial

    • A note on log space optimization 

      Álvarez Faura, M. del Carme; Jenner, Birgit (1992-12-30)
      Report de recerca
      Accés obert
      We show that computing iterated multiplication of word matrices over {0,1}, using the operations maximum and concatenation, is complete for the class optL of log space optimization functions. The same problem for word ...

    • A note on logical connectives with weak duality 

      Alsina Català, Claudi; Tomás Belenguer, María Santos (2015-03-31)
      Article
      Accés obert
      We study the weak duality S(x, N(x)) = N(T (x, N(x))) where S is a continuous t-conorm, T is a continuous t-norm and N is a strong negation. We characterize completely the strict cases and show that in all other cases there ...

    • A note on modeling some classes of nonlinear systems from data 

      Gosea, Ion Victor; Antoulas, Athanasios C. (CIMNE, 2019)
      Text en actes de congrés
      Accés obert
      We study the modeling of bilinear and quadratic systems from measured data. The measurements are given by samples of higher order frequency response functions. These values can be identified from the corresponding Volterra ...

    • A note on movement in logical grammar 

      Morrill, Glyn (2018)
      Article
      Accés obert
      In this article, we make some brief remarks on overt and covert movement in logical grammar. With respect to covert movement (e.g. quantification), we observe how a treatment in terms of displacement calculus interacts ...

    • A note on multinomial probabilistic values 

      Carreras Escobar, Francisco; Puente del Campo, María Albina (Springer, 2018-04)
      Article
      Accés obert
      Multinomial values were previously introduced by one of the authors in reliability and extended later to all cooperative games. Here, we present for this subfamily of probabilistic values three new results, previously ...

    • A Note on polynomial-size monotone proofs of the pigeon hole principle 

      Atserias, Albert (2000-09)
      Report de recerca
      Accés obert
      We see that the version of the pigeon-hole principle in which every hole is forced to receive a pigeon (called onto) and the version in which every pigeon is mapped into exactly one hole (called functional) have ...

    • A note on prediction of maize stover qualityby near-infrared reflectance spectroscopy (NIRS)technique 

      Albanell, Elena; Plaixats, Josefina; Mas Serra, Maite (1997-10-24)
      Article
      Accés obert
      Near-infrared reflectance spectroscopy (NIRS) technique was investigated as a means of predicting quality parameters in semi-exotic maize stover. These parameters included neutral detergent fibre (NDF) and in vitro dry ...

    • A Note on sparse supersaturation and extremal results for linear homogeneous systems 

      Spiegel, Christoph (2017-08-25)
      Article
      Accés obert
      We study the thresholds for the property of containing a solution to a linear homogeneous system in random sets. We expand a previous sparse Sz\'emeredi-type result of Schacht to the broadest class of matrices possible. ...

    • A note on symplectic and Poisson linearization of semisimple Lie algebra actions 

      Miranda Galcerán, Eva (2015-03)
      Report de recerca
      Accés obert
      In this note we prove that an analytic symplectic action of a semisimple Lie algebra can be locally linearized in Darboux coordinates. This result yields simultaneous analytic linearization for Hamiltonian vector fields ...

    • A note on tests for market integration in a multivariate non-stationary framework 

      Sanjuán, Ana Isabel; Gil Roig, José María (2001-05)
      Article
      Accés restringit per política de l'editorial

    • A note on the application of integrals involving cyclic products of kernels 

      Buldygin, Valery V.; Utzet, Frederic; Zaiats, Vladimir (Institut d'Estadística de Catalunya, 2002)
      Article
      Accés obert
      In statistics of stochastic processes and random fields, a moment function or a cumulant of an estimate of either the correlation function or the spectral function can often contain an integral involving a cyclic product ...

    • A note on the configuration of the digital ecosystem in Latin America 

      Acs, Zoltan; Lafuente González, Esteban Miguel; Szerb, László (2022-01-01)
      Article
      Accés obert
      We evaluate the main characteristics of the digital ecosystem of North American (USA and Canada) and 16 Latin American economies for 2019. By employing the ‘benefit of the doubt’ model rooted in non-parametric techniques ...

    • A note on the convergence of the secant method for simple and multiple roots 

      Díez, Pedro (Elsevier, 2003-11)
      Article
      Accés obert
      The secant method is one of the most popular methods for root finding. Standard text books in numerical analysis state that the secant method is super linear: the rate of convergence is set by the gold number. Never- theless, ...

    • A note on the degree sequences of graphs with restrictions 

      Muntaner Batle, Francesc Antoni; Rius Font, Miquel (2008-01-15)
      Article
      Accés obert
      Degree sequences of some types of graphs will be studied and characterized in this paper.

    • A note on the dynamics around the L1,2 Lagrange points of the Earth-Moon system in a complete solar system model 

      Tang, Guojian; Gomez Muntaner, Gerard; Masdemont Soler, Josep; Yijun, L. (2012)
      Text en actes de congrés
      Accés obert
      The purpose of this paper is the study of the phase space around the collinear libration points L1 and L2 of the Earth–Moon system when the gravitational effects of the remaining bodies of the Solar System are taken into ...

    • A note on the dynamics around the Lagrange collinear points of the Earth-Moon system in a complete Solar System model 

      Lian, Yijun; Gómez Muntané, Gerard; Masdemont Soler, Josep; Tang, Guojian (2013-02)
      Article
      Accés restringit per política de l'editorial
      In this paper we study the dynamics of a massless particle around the L 1,2 libration points of the Earth–Moon system in a full Solar System gravitational model. The study is based on the analysis of the quasi-periodic ...