Results 11 to 20 of about 667,917 (269)

Discrete Hamiltonians of discrete Painlevé equations [PDF]

open access: yesAnnales de la Faculté des sciences de Toulouse : Mathématiques, 2021
We express discrete Painlevé equations as discrete Hamiltonian systems. The discrete Hamiltonian systems here mean the canonical transformations defined by generating functions. Our construction relies on the classification of the discrete Painlevé equations based on the surface-type. The discrete Hamiltonians we obtain are written in the logarithm and
Mase, Takafumi   +2 more
openaire   +2 more sources

Discrete breathers [PDF]

open access: yesPhysics Reports, 1998
62 pages, LaTeX, 14 ps figures. Physics Reports, to be published; see also at http://www.mpipks-dresden.mpg.de/~flach/html/preprints ...
Flach, S., Willis, C.
openaire   +3 more sources

Discrete Memristor and Discrete Memristive Systems

open access: yesEntropy, 2022
In this paper, we investigate the mathematical models of discrete memristors based on Caputo fractional difference and G–L fractional difference. Specifically, the integer-order discrete memristor is a special model of those two cases. The “∞”-type hysteresis loop curves are observed when input is the bipolar periodic signal.
Shaobo He 0001   +4 more
openaire   +3 more sources

Discrete Surfaces Segmentation into Discrete Planes [PDF]

open access: yes, 2004
This paper is composed of two parts. In the first one, we present an analysis of existing discrete surface segmentation algorithms. We show that two classes of algorithms can actually be defined according to discrete surface and plane definitions. In the second part, we prove the link between the two classes presented.
Sivignon, Isabelle   +2 more
openaire   +2 more sources

Lagrange Dual Method for Sparsity Constrained Optimization

open access: yesIEEE Access, 2018
In this paper, we investigate the l0 quasi-norm constrained optimization problem in the Lagrange dual framework and show that the strong duality property holds.
Wenxing Zhu   +3 more
doaj   +1 more source

Discrete gravity [PDF]

open access: yesJournal of High Energy Physics, 2021
Abstract We assume that the points in volumes smaller than an elementary volume (which may have a Planck size) are indistinguishable in any physical experiment. This naturally leads to a picture of a discrete space with a finite number of degrees of freedom per elementary volume.
Ali H. Chamseddine, Viatcheslav Mukhanov
openaire   +3 more sources

Solving Linear Equations Using Matrix Splitting for Iterative Discrete-Time Methods in Neural Networks [PDF]

open access: yesKirkuk Journal of Science, 2007
The material presented in this paper is the foundation for neural network architectures that can perform (Solving linear equations using matrix splitting for iterative discrete-time methods in neural networks).As announced a neural network consists of ...
Essa I. Essa
doaj   +1 more source

A comparison of the accuracy of discrete event and discrete time [PDF]

open access: yesProceedings of the 2010 Winter Simulation Conference, 2010
Proceedings of the 2010 Winter Simulation Conference B. Johansson, S. Jain, J. Montoya-Torres, J. Hugan, and E. Yücesan, eds.
Buss, Arnold, Al Rowaei, Ahmed
openaire   +2 more sources

Le discret et le continu dans l’enseignement des suites et des fonctions en fin de collège et au lycée

open access: yesAnnales de Didactique et de Sciences Cognitives, 2021
Notions pertaining to the Calculus field in France, up to the end of Seconde (10th grade), are mainly functions and their graphical representations. Curricula, followed by textbooks, integrate these notions into “the continuous”.
Sophie Rousse
doaj   +1 more source

Discrete Moving Frames and Discrete Integrable Systems [PDF]

open access: yesFoundations of Computational Mathematics, 2013
Group based moving frames have a wide range of applications, from the classical equivalence problems in differential geometry to more modern applications such as computer vision. Here we describe what we call a discrete group based moving frame, which is essentially a sequence of moving frames with overlapping domains.
Elizabeth L. Mansfield   +2 more
openaire   +2 more sources

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