Exploració per títol
Ara es mostren els items 5718-5737 de 245705
-
A note on the dynamics around the Lagrange points of the Earth-Moon system in a complete Solar System model
(2013)
Text en actes de congrés
Accés obertThis paper studies the dynamics of a massless particle around the 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 ... -
A Note on the Dynamics of Piecewise-Autonomous Bistable Parabolic Equations
(2000)
Article
Accés obert -
A note on the Ecogen language built-in random deviate generators
(Universitat Politècnica de Barcelona. Centre de Càlcul, 1986-09)
Article
Accés obertThe standard ECOGEN (a simulation language based on Pascal) random deviate generators are described. For every one of them, a short usage note and a description of the algorithm and underlying theory is presented. This ... -
A note on the Fisher information matrix for the skew-generalized-normal model
(Institut d'Estadística de Catalunya, 2013)
Article
Accés obertIn this paper, the exact form of the Fisher information matrix for the skew-generalized normal (SGN) distribution is determined. The existence of singularity problems of this matrix for the skew-normal and normal particular ... -
A note on the likelihood and moments of the skew-normal distribution
(Institut d'Estadística de Catalunya, 2008)
Article
Accés obertIn this paper an alternative approach to the one in Henze (1986) is proposed for deriving the odd moments of the skew-normal distribution considered in Azzalini (1985). The approach is based on a Pascal type triangle, which ... -
A note on the limitations of utilizing modal logic for federated information systems
(Universitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics, 1992)
Text en actes de congrés
Accés obertRecently much effort has been put into using modal logic representation lan guages for different kinds of distributed database and distributed problem solving systems. We have ourselves presented an architecture realizing ... -
A note on the matrix Haffian
(Institut d'Estadística de Catalunya, 2000)
Article
Accés obert -
A note on the order of iterated line digraphs
(Wiley, 2016-07-27)
Article
Accés obertGiven a digraph G, we propose a new method to find the recurrence equation for the number of vertices n_k of the k-iterated line digraph L_k(G), for k>= 0, where L_0(G) = G. We obtain this result by using the minimal polynomial ... -
A note on the paper ‘Demonstrating Johnson’s algorithm via resource constrained scheduling’
(Taylor & Francis, 2017-11-13)
Article
Accés obertIn this paper we demonstrate that the relation between two jobs defined by min{ai, bj}=min{bi, aj}, used in Johnson’s theorem, is not transitive. However, both the theorem and Johnson’s algorithm are correct. -
A note on the periodic orbits and topological entropy of graph maps
(2000)
Article
Accés obertThis paper deals with the relationship between the periodic orbits of continuous maps on graphs and the topological entropy of the map. We show that the topological entropy of a graph map can be approximated by the entropy ... -
A note on the query complexity of learning DFA
(1992)
Report de recerca
Accés obertIt is known that the class of deterministic finite automata is polynomial time learnable by using membership and equivalence queries. We investigate -- the query complexity -- the number of membership and equivalence queries ... -
A note on the relationship between spectral radius and norms of bounded linear operators
(2009)
Article
Accés obertLet X be a Banach space and L ( X ) be the Banach algebra of bounded operators on X . In this note we prove that if we have a compact subset K of a commutative sub-algebra of L ( X ), and given " > 0, then ... -
A note on the scalar Haffian
(Institut d'Estadística de Catalunya, 2000)
Article
Accés obertIn this note a uniform transparent presentation of the scalar Haffian will be given. Some well-known results will be generalized. A link will be established between the scalar Haffian and the derivative matrix as developed ... -
A note on the subgraphs of the (2×\infty)-grid
(2010-02)
Article
Accés restringit per política de l'editorialWe give a linear-time algorithm checking whether a graph is a subgraph of the (2×k)-grid for some value of k. Our algorithm is based on a detailed characterization of the structure of such graphs. -
A note on the symmetric difference in lattices
(Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2005)
Article
Accés obertThe paper introduces a definition of symmetric difference in lattices with negation, presents its general properties and studies those that are typical of ortholattices, orthomodular lattices, de Morgan and boolean algebras. -
A note on the symplectic topology of b-manifolds
(2017)
Article
Accés obertPoisson manifold (M2n; ) is b-symplectic if Vn is transverse to the zero section. In this paper we apply techniques native to Symplectic Topology to address questions pertaining to b-symplectic manifolds. We pro- vide ... -
A note on the totally transitive graph maps
(2000)
Article
Accés obert -
A note on the two temperature theory with dual-phase-lag delay: some exact solutions
(Elsevier, 2009-10)
Article
Accés restringit per política de l'editorialIn this note we present exact solutions of two initial-boundary value problems (IBVP)s in the setting of a recently-introduced theory of heat conduction, wherein the two temperature theory of the late 1960s is merged ... -
A note on the use of supply-use tables in impact analyses
(Institut d'Estadística de Catalunya, 2012)
Article
Accés obertLittle attention has so far been paid to the problems inheren t in interpreting the meaning of results from standard impact analyses using symmetric input-outpu t tables. Impacts as well as drivers of these impacts ... -
A Note on the use of topology extensions for provoking instability in communication networks
(2004-03)
Report de recerca
Accés obertWe study some aspects of the instability of the last-in-first-out (LIFO) scheduling protocol in under-loaded packet-switched networks under the Adversarial Queueing Theory model [Borodin et al., Journal of the ACM, ...