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Closed poly-trajectories and Poincaré index of non-smooth vector fields on the plane
(2013-04-01)
This paper is concerned with closed orbits of non-smooth vector fields on the plane. For a class of non-smooth vector fields we provide necessary and sufficient conditions for the existence of closed poly-trajectorie. By ...
Linear smoothed polygonal and polyhedral finite elements
(Wiley, 2017)
The strain smoothing technique over higher order elements and arbitrary polytopes yields less accurate solutions than other techniques such as the conventional polygonal finite element method. In this work, we propose a ...
Closed poly-trajectories and Poincaré index of non-smooth vector fields on the plane
(2013-04-01)
This paper is concerned with closed orbits of non-smooth vector fields on the plane. For a class of non-smooth vector fields we provide necessary and sufficient conditions for the existence of closed poly-trajectorie. By ...
Center boundaries for planar piecewise-smooth differential equations with two zones
(2017-01-01)
This paper is concerned with 1-parameter families of periodic solutions of piecewise smooth planar vector fields, when they behave like a center of smooth vector fields. We are interested in finding a separation boundary ...
Bifurcation of limit cycles from a non-smooth perturbation of a two-dimensional isochronous cylinder
(2016-06-01)
Detect the birth of limit cycles in non-smooth vector fields is a very important matter into the recent theory of dynamical systems and applied sciences. The goal of this paper is to study the bifurcation of limit cycles ...
Creation of Limit Cycles in Piecewise Smooth Vector Fields Tangent to Nested Tori
(2021-07-01)
The main goal of this paper is to present the behavior generated by piecewise smooth vector fields tangent to foliations. We consider two smooth foliations F1 and F2 that are coupled to produce a foliation composed by ...
The smoothing hypothesis, stock returns and risk in Brazil
(2011)
Income smoothing is defined as the deliberate normalization of income in order to reach a desired trend. If the smoothing causes more information to be reflected in the stock price, it is likely to improve the allocation ...
Tree-structured smooth transition models
(Escola de Pós-Graduação em Economia da FGV, 2005-11-03)
The goal of this paper is to introduce a class of tree-structured models that combines aspects of regression trees and smooth transition regression models. The model is called the Smooth Transition Regression Tree (STR-Tree). ...
Soluble Guanylyl Cyclase Is Reduced in Airway Smooth Muscle Cells From a Murine Model of Allergic Asthma
(Soluble guanylyl cyclase is reduced in airway smooth muscle cells from a murine model of allergic asthma". Fabiola Pláceres Uray, Ramona González de Alfonzo, Itala Lippo de Bécemberg and Marcelo J. Alfonzo World Allergy Organization Journal WAOJ volume 3-Issue 12, pp:271-276.December 2010, 2012)
An application of the maximum entropy method with smoothing to industrial tomography
(Planta Piloto de Ingeniería Química, 2013-10)
The maximum entropy method combined with a smoothing restriction was applied to the tomography of a BNC connector using five noisy radiographies from different rotating views. A heuristic control of the filter parameter ...