Results 11 to 20 of about 219,337 (309)

Waveforms for Gravitational Radiation from Cosmic String Loops [PDF]

open access: yes, 2000
We obtain general formulae for the plus- and cross- polarized waveforms of gravitational radiation emitted by a cosmic string loop in transverse, traceless (synchronous, harmonic) gauge.
A. Vilenkin   +19 more
core   +3 more sources

Equivariant Perturbation in Gomory and Johnson's Infinite Group Problem. I. The One-Dimensional Case [PDF]

open access: yes, 2012
We give an algorithm for testing the extremality of minimal valid functions for Gomory and Johnson's infinite group problem that are piecewise linear (possibly discontinuous) with rational breakpoints.
R.E. Gomory   +6 more
core   +4 more sources

Piecewise-Linear Approximations of Multidimensional Functions [PDF]

open access: yesJournal of Optimization Theory and Applications, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Misener, R, Floudas, CA
openaire   +3 more sources

Study of the Dynamics of a Class of One-dimensional Piecewise Linear Displays with One Gap

open access: yesМоделирование и анализ информационных систем, 2017
In the  paper,  the  dynamics  of a class of one-dimensional  piecewise linear  displays  with one gap is studied.   Stable  conditions  of equilibrium  as well as other  attractors are found by numerical methods.
Grigorii A. Akhremenko
doaj   +1 more source

A generalized approach for implicit time integration of piecewise linear/nonlinear systems

open access: yesInternational Journal of Mechanical System Dynamics, 2021
A generalized solution scheme using implicit time integrators for piecewise linear and nonlinear systems is developed. The piecewise linear characteristic has been well‐discussed in previous studies, in which the original problem has been transformed ...
Huimin Zhang   +3 more
doaj   +1 more source

Chaotifying 2-D piecewise-linear maps via a piecewise-linear controller function [PDF]

open access: yesNonlinear Oscillations, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Elhadj, Z., Sprott, J.C.
openaire   +3 more sources

Convex Optimal Uncertainty Quantification [PDF]

open access: yes, 2015
Optimal uncertainty quantification (OUQ) is a framework for numerical extreme-case analysis of stochastic systems with imperfect knowledge of the underlying probability distribution.
Han, Shuo   +4 more
core   +3 more sources

Lower Bounds on Complexity of Lyapunov Functions for Switched Linear Systems [PDF]

open access: yes, 2015
We show that for any positive integer $d$, there are families of switched linear systems---in fixed dimension and defined by two matrices only---that are stable under arbitrary switching but do not admit (i) a polynomial Lyapunov function of degree $\leq
Ahmadi, Amir Ali, Jungers, Raphael
core   +2 more sources

Piecewise quadratic Lyapunov functions for stability verification of approximate explicit MPC [PDF]

open access: yesModeling, Identification and Control, 2010
Explicit MPC of constrained linear systems is known to result in a piecewise affine controller and therefore also piecewise affine closed loop dynamics.
Morten Hovd, Sorin Olaru
doaj   +1 more source

A hybrid bin scheme to solve the condensation/evaporation equation using a cubic distribution function [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
A computationally efficient method is proposed to replace the piecewise linear number distribution in a hybrid bin scheme with a piecewise cubic polynomial.
T. Dinh, D. R. Durran
doaj   +1 more source

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