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EUROPEAN PHYSICAL JOURNAL B, ISSN 1434-6028, 12/2019, Volume 92, Issue 12
We propose a novel adaptation of permutation entropy analysis applied to eye-tracking data. Eye movements arising during cognitive tasks are characterized as... 
PHYSICS, CONDENSED MATTER | PATTERNS | Statistical and Nonlinear Physics | SEARCH
Journal Article
Physical Review Letters, ISSN 0031-9007, 04/2018, Volume 120, Issue 17, p. 178101
Recent studies on the human eye indicate that the pupil moves inside the eyeball due to deformations of the iris. Here we show that this phenomenon can be... 
Deformation | Dependence | Oscillations
Journal Article
Journal of Physics A: Mathematical and Theoretical, ISSN 1751-8113, 02/2010, Volume 43, Issue 8
Journal Article
The European Physical Journal B, ISSN 1434-6028, 2/2017, Volume 90, Issue 2, pp. 1 - 12
In this paper we have addressed the question of whether a simple set of functions being the solution of a model, namely the damped harmonic oscillator with a... 
Condensed Matter Physics | Solid State Physics | Fluid- and Aerodynamics | Statistical and Nonlinear Physics | Complex Systems | Physics, general | Physics | ATTENTION | PHYSICS, CONDENSED MATTER | MICROSACCADES | VISION | FIXATION | FOVEAL
Journal Article
Journal of Mathematical Physics, ISSN 0022-2488, 07/2017, Volume 58, Issue 7, p. 73504
The derivatives of eight Horn hypergeometric functions [four Appell F 1, F 2, F 3, and F 4, and four (degenerate) confluent Φ 1 , Φ 2 , Ψ 1 , and Ξ 1 ] with... 
INTEGRALS | DIFFERENTIAL REDUCTION | EPSILON EXPANSION | MATHEMATICA-BASED PACKAGES | HYPERDIRE | VARIABLES | F-1 | PHYSICS, MATHEMATICAL | COLLISIONS | Hypergeometric functions | Thermal expansion | Autoionization | Parameters | Derivatives
Journal Article
JOURNAL OF MATHEMATICAL PHYSICS, ISSN 0022-2488, 06/2008, Volume 49, Issue 6
The derivatives to any order of the confluent hypergeometric (Kummer) function F=F-1(1)(a,b,z) with respect to the parameter a or b are investigated and... 
COULOMB WAVE-FUNCTIONS | PHYSICS, MATHEMATICAL
Journal Article
Journal of Mathematical Physics, ISSN 0022-2488, 2008, Volume 49, Issue 6, p. 63508
Journal Article
Computer Physics Communications, ISSN 0010-4655, 2011, Volume 182, Issue 5, pp. 1145 - 1155
The computational techniques needed to generate a two-body Generalized Sturmian basis are described. These basis are obtained as a solution of the Schrödinger... 
Atomic spectra | Continuum spectra | Generalized Sturmian functions | COULOMB | STATES | COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS | ORBITALS | PHYSICS, MATHEMATICAL | SCHRODINGER | SCATTERING | Methods | Algebra | Microprocessors | Computation | Asymptotic properties | Dynamics | Mathematical analysis | Packages | Eigenvalues | Wave functions | Dynamical systems
Journal Article
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, ISSN 1751-8113, 10/2009, Volume 42, Issue 39
The derivatives to any order of the Gaussian hypergeometric function F-2(1) (a, b, c; z) with respect to the parameters a, b and c are expressed in terms of... 
PHYSICS, MULTIDISCIPLINARY | PHYSICS, MATHEMATICAL
Journal Article
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, ISSN 1751-8113, 02/2010, Volume 43, Issue 8
The derivatives of any order of the general hypergeometric function F-p(q)(a(1),..., a(p); b(1),..., b(q); z) with respect to the parameters a(i) or b(i) are... 
PHYSICS, MULTIDISCIPLINARY | PHYSICS, MATHEMATICAL | HYPERQUANTIZATION ALGORITHM
Journal Article
Journal of Mathematical Physics, ISSN 0022-2488, 05/2014, Volume 55, Issue 5, p. 52101
We introduce and study two-body Quasi Sturmian functions which are proposed as basis functions for applications in three-body scattering problems. They are... 
HYDROGEN | J-MATRIX METHOD | GREENS-FUNCTIONS | BREAKUP | ATOMS | MODEL | PHYSICS, MATHEMATICAL | IONIZATION | Coulomb potential | Schroedinger equation | Basis functions | Scattering | TWO-BODY PROBLEM | CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS | EQUATIONS | THREE-BODY PROBLEM | FUNCTIONS | ASYMPTOTIC SOLUTIONS | COULOMB FIELD | SCATTERING
Journal Article
Journal of Physics A: Mathematical and Theoretical, ISSN 1751-8113, 02/2010, Volume 43, Issue 8, p. 85210
Journal Article
Journal of Physics A: Mathematical and Theoretical, ISSN 1751-8121, 02/2010, Volume 43, Issue 8, pp. 085210 - 085210
The derivatives of any order of the general hypergeometric function pFq(a1, ..., ap; b1, ..., bq; z) with respect to the parameters ai or bi are expressed, in... 
Hypergeometric functions | Illustrations | Derivatives | Mathematical analysis | Differential equations | Multivariable
Journal Article
Physical Review Letters, ISSN 0031-9007, 04/2018, Volume 120, Issue 17, p. 178101
Recent studies on the human eye indicate that the pupil moves inside the eyeball due to deformations of the iris. Here we show that this phenomenon can be... 
EYE-TRACKER SIGNAL | PUPIL | POST-SACCADIC OSCILLATIONS | PHYSICS, MULTIDISCIPLINARY | SIZE | MICROSACCADES | MODEL | FIXATION | Saccades - physiology | Models, Biological | Humans | Iris - physiology
Journal Article
The European Physical Journal D, ISSN 1434-6060, 2/2017, Volume 71, Issue 2, pp. 1 - 8
Journal Article
Journal of Physics: Conference Series, ISSN 1742-6588, 09/2015, Volume 635, Issue 9, p. 92123
Conference Proceeding
Physical Review A - Atomic, Molecular, and Optical Physics, ISSN 1050-2947, 01/2014, Volume 89, Issue 1
In a recent contribution our group proposed a perturbative approach to deal with the open problem of double ionization of helium by electron impact. The goal... 
DISCRETIZATION | IMPACT DOUBLE-IONIZATION | STURMIAN FUNCTIONS | OPTICS | SCATTERING | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL
Journal Article
Journal of Physics A: Mathematical and Theoretical, ISSN 1751-8113, 10/2009, Volume 42, Issue 39, p. 395208
Journal Article
European Physical Journal D, ISSN 1434-6060, 05/2017, Volume 71, Issue 5, p. 1
We study theoretically the double ionization of helium by 6 MeV proton impact. For such fast projectiles, when considering the projectile-target interaction to... 
SINGLE | OPTICS | ELECTRON CORRELATIONS | ANTIPROTONS | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | Ionization | Analysis
Journal Article
European Physical Journal D, ISSN 1434-6060, 08/2015, Volume 69, Issue 8, p. 1
In this work we study the double photoionization of helium induced by low intensities laser fields in the regime where only one photon absorption occurs. The... 
Atomic and Molecular Collisions | THRESHOLD | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | DIFFERENTIAL CROSS-SECTIONS | EXCESS ENERGY | OPTICS | ION MOMENTUM SPECTROSCOPY | PHOTO-DOUBLE IONIZATION | DEPENDENCE | ATOM | Photoionization
Journal Article
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