Search results for "integral"
showing 10 items of 902 documents
Localization and separation of solutions for Fredholm integral equations
2020
[EN] In this paper, we establish a qualitative study of nonlinear Fredholm integral equations, where we will carry out a study on the localization and separation of solutions. Moreover, we consider an efficient algorithm to approximate a solution. To do this, we study the semilocal convergence of an efficient third order iterative scheme for solving nonlinear Fredholm integral equations under mild conditions. The novelty of our work lies in the fact that this study involves first order Frechet derivative and mild conditions. A numerical example involving nonlinear Fredholm integral equations, is solved to show the domains of existence and uniqueness of solutions. The applicability of the it…
On the integration of Riemann-measurable vector-valued functions
2016
We confine our attention to convergence theorems and descriptive relationships within some subclasses of Riemann-measurable vector-valued functions that are based on the various generalizations of the Riemann definition of an integral.
On Fuzzy Stochastic Integral Equations—A Martingale Problem Approach
2011
In the paper we consider fuzzy stochastic integral equations using the methods of stochastic inclusions. The idea is to consider an associated martingale problem and its solutions in order to obtain a solution to the fuzzy stochastic equation.
Martingale Convergence Theorems and Their Applications
2020
We became familiar with martingales X=(X n ) n∈N0 as fair games and found that under certain transformations (optional stopping, discrete stochastic integral) martingales turn into martingales. In this chapter, we will see that under weak conditions (non-negativity or uniform integrability) martingales converge almost surely. Furthermore, the martingale structure implies L p -convergence under assumptions that are (formally) weaker than those of Chapter 7. The basic ideas of this chapter are Doob’s inequality (Theorem 11.4) and the upcrossing inequality (Lemma 11.3).
Fractional Derivatives in Interval Analysis
2017
In this paper, interval fractional derivatives are presented. We consider uncertainty in both the order and the argument of the fractional operator. The approach proposed takes advantage of the property of Fourier and Laplace transforms with respect to the translation operator, in order to first define integral transform of interval functions. Subsequently, the main interval fractional integrals and derivatives, such as the Riemann–Liouville, Caputo, and Riesz, are defined based on their properties with respect to integral transforms. Moreover, uncertain-but-bounded linear fractional dynamical systems, relevant in modeling fractional viscoelasticity, excited by zero-mean stationary Gaussian…
A Note on Resampling the Integration Across the Correlation Integral with Alternative Ranges
2003
Abstract This paper reconsiders the nonlinearity test proposed by Ko[cbreve]enda (Ko[cbreve]enda, E. (2001). An alternative to the BDS test: integration across the correlation integral. Econometric Reviews20:337–351). When the analyzed series is non‐Gaussian, the empirical rejection rates can be much larger than the nominal size. In this context, the necessity of tabulating the empirical distribution of the statistic each time the test is computed is stressed. To that end, simple random permutation works reasonably well. This paper also shows, through Monte Carlo experiments, that Ko[cbreve]enda's test can be more powerful than the Brock et al. (Brock, W., Dechert, D., Scheickman, J., LeBar…
Cámaras de comercio: una nueva gestión. El enfoque del Cuadro de Mando Integral en las Cámaras Españolas
2020
Las Cámaras de Comercio, una de las organizaciones empresariales multisectoriales más extendidas en el mundo, se caracterizan por tres condiciones que las diferencian de otras agrupaciones empresariales: no tienen fines de lucro, comprenden diversos sectores dentro de un territorio específico, y son autogestionadas. En el presente trabajo, después de tratar sobre qué tipo de entidad es una Cámara, la evolución en su organización, y la utilidad de su labor para la sociedad y la economía españolas, ponemos de manifiesto la oportunidad de que éstas modifiquen su gestión introduciendo el sistema, ya bien conocido y aplicado en el sector privado, del Cuadro de Mando Integral (CMI), como instrume…
Climate change, ethics and sustainability: An innovative approach
2018
Our goal in this article is the analysis of the state of affairs, regarding the phenomenon of climate change and its impact in different areas. We synthesize the various approaches available in the scientific debate on this subject, mainly the one that affirms the existence of global warming and the current approach, which denies it. Beyond the controversy, what seems to be evident is that there is a multifactorial causality in a phenomenon that affects anthropogenic factors a well. Since some environmentalisms exclude the human being in their consideration of the ecosystem, and if they do, they accommodate man in their approaches always as a variable that distorts and deteriorates the envi…
Educación para la paz y la ciudadanía desde la música como lenguaje universal de las emociones
2016
La música tiene la gran capacidad de transferir sentimientos para cambiar /transformar la sociedad. Por tanto, la música puede resultar una terapia para trabajar tanto con niños como con adultos, en la escuela o fuera de ella. La música es un eje para el desarrollo integral de nuestra realidad. Da luz a nuestra oscuridad y puede, si nos lo proponemos, convertirse en un pertinente recurso terapéutico para la humanidad, generando bases sólidas de comportamiento, que nos guiaran por un verdadero camino ético hacia la generosidad. Asumimos que la música como código de circulación ética, es una fuente de alimento para el espíritu, ayuda al hombre a través de su semántica a ser mejor persona, a l…
Prevención VIH/SIDA en la adolescencia y juventud en el marco integral de la educación para la salud
2002
La Pandemia del Sida, ha hecho que du¬rante los últimos 20 años se haya introduci¬do la educación sexual, no por considerarla una materia básica en la información y for¬mación de nuestros adolescentes y jóvenes, sino que con demasiada frecuencia, y desde estos últimos 7 años, limitándose únicamen¬te a los aspectos perniciosos de las prácticas sexuales: enfermedades de transmisión sexual, embarazos no deseados, sexo seguro, hepatitis B y VIH/SIDA., etc. .Vistos los resultados, la evolución de la incidencia yprevalencia en jóvenes y adolescentes, desde hace años, en nuestro país, fallan sin duda, las estrategias, el abordaje, los mensajes y las campañas. Todo esto nos tendría que hacer reflex…