Results 11 to 20 of about 6,024,846 (308)

Unequal Interval Dynamic Traffic Flow Prediction with Singular Point Detection

open access: yesApplied Sciences, 2023
Analysis of traffic flow signals plays an important role in traffic prediction and management. As an intrinsic property, the singular point of a traffic flow signal labels a new nonsteady status.
Chang Guo, Demin Li, Xuemin Chen
doaj   +1 more source

Studying Stability of a Non-linear Autoregressive Model [PDF]

open access: yesمجلة التربية والعلم, 2018
In this paper we study the stability of one non-linear autoregressive model with hyperbolic triangle function polynomial with hyperbolic tangent function (singular point and it's stability conditions and the stability of the limit cycle) by using the ...
Anas Salim Youns   +1 more
doaj   +1 more source

Model of motion of a material point near two tangent paraboloids [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
The motion of a material point near a singularity of the type of two tangent surfaces is considered. The surfaces are located symmetrically with respect to a common tangent plane and have a common axis of rotation.
Burian, Sergey N.
doaj   +1 more source

Singular charge fluctuations at a magnetic quantum critical point [PDF]

open access: yesScience, 2018
Spin-charge entanglement Many physical properties follow characteristic scaling laws near quantum critical points, which are associated with phase transitions at absolute zero temperature.
L. Prochaska   +15 more
semanticscholar   +1 more source

Singular points and limit cycles of the generalized Kukles polynomial differential system

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2022
Background. Searching of numbers of Poincare limit cycles of polynomial dynamic systems belongs to second part of the 16th Gilbert problem, which is not solved in general.
I.N. Mal'kov, V.V. Machulis
doaj   +1 more source

Global bifurcation analysis of a rational Holling system [PDF]

open access: yesКомпьютерные исследования и моделирование, 2017
In this paper, we consider a quartic family of planar vector fields corresponding to a rational Holling system which models the dynamics of the populations of predators and their prey in a given ecological or biomedical system and which is a variation on
Valery Aleksandrovich Gaiko
doaj   +1 more source

Location of singular points in orthorhombic media

open access: yesГеофизический журнал, 2022
The dependence of the location of singular points of orthorhombic (ORT) media on the stiffness coefficients , and phase velocity  at the singularity point is studied under the assumption that  are larger than  and .
Yu.V. Roganov   +2 more
doaj   +1 more source

Point singularity array with metasurfaces

open access: yesNature Communications, 2023
AbstractPhase singularities are loci of darkness surrounded by monochromatic light in a scalar field, with applications in optical trapping, super-resolution imaging, and structured light-matter interactions. Although 1D singular structures, like optical vortices, are common due to their robust topological properties, uncommon 0D (point) and 2D (sheet)
Soon Wei Daniel Lim   +6 more
openaire   +5 more sources

A Singular Value Thresholding Algorithm for Matrix Completion [PDF]

open access: yesSIAM Journal on Optimization, 2008
This paper introduces a novel algorithm to approximate the matrix with minimum nuclear norm among all matrices obeying a set of convex constraints. This problem may be understood as the convex relaxation of a rank minimization problem and arises in many ...
Jian-Feng Cai, E. Candès, Zuowei Shen
semanticscholar   +1 more source

Properties of singular points in a special case of orthorhombic media

open access: yesГеофизический журнал, 2023
The position of singular lines for orthorhombic (ORT) media with fixed diagonal elements of the elasticity matrix cij, i=1…6 is studied under the condition that c11, c22, c33>c66>c44>c55.
Yu.V. Roganov, A. Stovas, V.Yu. Roganov
doaj   +1 more source

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