Results 11 to 20 of about 4,036 (224)

Detection of dynamical regime transitions with lacunarity as a multiscale recurrence quantification measure [PDF]

open access: yes, 2021
We propose lacunarity as a novel recurrence quantification measure and illustrate its efficacy to detect dynamical regime transitions which are exhibited by many complex real-world systems.
Marwan, Norbert   +4 more
core   +3 more sources

Matrix interpretation of multiple orthogonality [PDF]

open access: yes, 2010
In this work we give an interpretation of a (s(d + 1) + 1)-term recurrence relation in terms of type II multiple orthogonal polynomials.We rewrite this recurrence relation in matrix form and we obtain a three-term recurrence relation for vector ...
Branquinho, Amílcar   +2 more
core   +2 more sources

GB-splines of arbitrary order [PDF]

open access: yes, 1998
Explicit formulae and recurrence relations for the calculation of generalized B-splines (GB-splines) of arbitrary order are given. We derive main properties of GB-splines and their series, i.e.
Sattayatham, Pairote   +3 more
core   +1 more source

Anomalous dynamics and the choice of Poincaré recurrence set [PDF]

open access: yes, 2016
We investigate the dependence of Poincaré recurrence-time statistics on the choice of recurrence set by sampling the dynamics of two- and four-dimensional Hamiltonian maps.
Sala, Matteo   +2 more
core   +1 more source

Fast computation of sine/cosine series coefficients of associated Legendre function of arbitrary high degree and order [PDF]

open access: yes, 2018
In order to accelerate the spherical/spheroidal harmonic synthesis of any function, we developed a new recursive method to compute the sine/cosine series coefficient of the 4π fully- and Schmidt quasi-normalized associated Legendre functions.
Fukushima T.
core   +1 more source

No-neighbours recurrence schemes for space-time Green’s functions on a 3D simple cubic lattice [PDF]

open access: yes, 2018
Application of multivariate creative telescoping to a finite triple sum representation of the discrete space-time Green's function for an arbitrary numeric (non-symbolic) lattice point on a 3D simple cubic lattice produces a fast, no-neighbours, seventh ...
John M Arnold   +8 more
core   +1 more source

Decoherence and thermalization of Unruh-DeWitt detector in arbitrary dimensions [PDF]

open access: yes, 2023
We study the decoherence and thermalization of an Unruh-DeWitt detector linearly coupled to the free massless scalar field in flat spacetime of arbitrary dimensions ($d\geq 2$). The initial state of the detector is chosen to be a pure state consisting of
Hao Xu, Xu, Hao
core   +2 more sources

Fast and rigorous arbitrary-precision computation of Gauss-Legendre quadrature nodes and weights [PDF]

open access: yes, 2018
International audienceWe describe a strategy for rigorous arbitrary-precision evaluation of Legendre polynomials on the unit interval and its application in the generation of Gauss-Legendre quadrature rules.
Mezzarobba, Marc, Johansson, Fredrik
core   +2 more sources

Differential-Difference Properties of Hypergeometric Series [PDF]

open access: yes, 2022
14 pagesSix families of generalized hypergeometric series in a variable $x$ and an arbitrary number of parameters are considered. Each of them is indexed by an integer $n$.
Brisebarre, Nicolas, Salvy, Bruno
core   +2 more sources

Approximating conic sections by constrained Bézier curves of arbitrary degree [PDF]

open access: yes, 2012
In this paper, an algorithm for approximating conic sections by constrained Bézier curves of arbitrary degree is proposed. First, using the eigenvalues of recurrence equations and the method of undetermined coefficients, some exact integral formulas for ...
Hu, Qian-Qian
core   +1 more source

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