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Dark energy from topology
(2020-03-01)
The concordance model of cosmology suffers from the major theoretical problems surrounding the observed value and recent emergence of a cosmological constant. In this paper we present a novel approach, which explains more ...
New optimality conditions for nonsmooth control problems
(2012-11-08)
This work considers nonsmooth optimal control problems and provides two new sufficient conditions of optimality. The first condition involves the Lagrange multipliers while the second does not. We show that under the first ...
A symmetric system of mixed Painlevé III-V equations and its integrable origin
(2015-12-18)
A mixed symmetric Painlevé III-V model which describes a hybrid of both equations is defined and obtained by successive self-similarity and Dirac Lagrange multiplier reductions from an integrable 4-boson hierarchy.
A geometric interpretation for transmission real losses minimization through the optimal power flow and its influence on voltage collapse
(Elsevier B.V., 2002-06-28)
This work presents an approach for geometric solution of an optimal power flow (OPF) problem for a two bus system (a slack and a PV busses). Additionally, the geometric relationship between the losses minimization and the ...
Um método primal-dual aplicado na resolução do problema de fluxo de potência ótimo
(Sociedade Brasileira de Pesquisa Operacional, 2004-08-01)
Este artigo apresenta uma nova abordagem para a resolução do problema de Fluxo de Potência Ótimo. Nesta abordagem as restrições canalizadas são tratadas pelo método de barreira logarítmica. Uma função Lagrangiana aumentada ...
UNIFORM DISSIPATIVENESS, ROBUST SYNCHRONIZATION AND LOCATION OF THE ATTRACTOR OF PARAMETRIZED NONAUTONOMOUS DISCRETE SYSTEMS
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2011)
In this series of papers, we study issues related to the synchronization of two coupled chaotic discrete systems arising from secured communication. The first part deals with uniform dissipativeness with respect to parameter ...
The boundedness of penalty parameters in an augmented Lagrangian method with constrained subproblems
(TAYLOR & FRANCIS LTDABINGDON, 2012)
Augmented Lagrangian methods are effective tools for solving large-scale nonlinear programming problems. At each outer iteration, a minimization subproblem with simple constraints, whose objective function depends on updated ...
Uncertainties in pion and kaon fragmentation functions
(American Physical Society, 2012-10)
We present a detailed assessment of uncertainties in parton-to-pion and parton-to-kaon fragmentation functions obtained in recent global QCD analyses of single-inclusive hadron production data at next-to-leading order ...
Natural vibrations of anisotropic plates with several internal line hinges
(Springer Wien, 2013-11)
This paper deals with the free transverse vibration of anisotropic plates with several arbitrarily located internal line hinges and piecewise smooth boundaries, elastically restrained against rotation and translation. The ...
Eigenfrequencies of generally restrained Timoshenko beams with an internal hinge
(NED University of Engineering & Technology, 2014-08)
This paper deals with the free transverse vibration of a Timoshenko beam with an arbitrarily located internal elastic hinge. The ends of the beam were elastically restrained against both rotation and translation. The results ...