Browsing EIO-Artigos by Title
Now showing items 123-142 of 203
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On a discontinuous beam-type equation with deviating argument in the curvature
(Springer International Publishing, 2016-10-12) -
On a new class of antiperiodic fractional boundary value problems
(Hindawi, 2013)This paper investigates a new class of antiperiodic boundary value problems of higher order fractional differential equations. Some existence and uniqueness results are obtained by applying some standard fixed point ... -
On estimating the perimeter using the alpha-shape
(Institut Henri Poincaré, 2017)We consider the problem of estimating the perimeter of a smooth domain in the plane based on a sample from the uniform distribution over the domain. We study the performance of the estimator defined as the perimeter of the ... -
On Exact Controllability of First-Order Impulsive Differential Equations
(SpringerOpen, 2010)Many dynamical systems have an impulsive dynamical behavior due to abrupt changes at certain instants during the evolution process. The mathematical description of these phenomena leads to impulsive differential equations. ... -
On fractional derivatives and primitives of periodic functions
(Hindawi, 2014)We prove that the fractional derivative or the fractional primitive of a -periodic function cannot be a 𝑇-periodic function, for any period 𝑇, with the exception of the zero function -
On fractional Langevin equation involving two fractional orders in different intervals
(Vilnius University Press, 2019)In this paper, we study a nonlinear Langevin equation involving two fractional orders α ∈ (0; 1] and β ∈ (1; 2] with initial conditions. By means of an interesting fixed point theorem, we establish sufficient conditions ... -
On fractional order dengue epidemic model
(Hindawi, 2014)This paper deals with the fractional order dengue epidemic model. The stability of disease-free and positive fixed points is studied. Adams-Bashforth-Moulton algorithm has been used to solve and simulate the system of ... -
On fractional orthonormal polynomials of a discrete variable
(Hindawi, 2015)A fractional analogue of classical Gram or discrete Chebyshev polynomials is introduced. Basic properties as well as their relation with the fractional analogue of Legendre polynomials are presented. -
On Homoclinic Solutions of a Semilinear -Laplacian Difference Equation with Periodic Coefficients
(SpringerOpen, 2010)We study the existence of homoclinic solutions for semilinear -Laplacian difference equations with periodic coefficients. The proof of the main result is based on Brezis-Nirenberg's Mountain Pass Theorem. Several examples ... -
On impulsive nonlocal integro-initial value problems involving multi-order Caputo-type generalized fractional derivatives and generalized fractional integrals
(Springer, 2019)In this paper, we present sufficient criteria ensuring the existence and uniqueness of solutions for nonlinear impulsive multi-order Caputo-type generalized fractional differential equations supplemented with nonlocal ... -
On multipoint resonant problems on the half-line
(Springer, 2019)In this work we obtain sufficient conditions for the existence of bounded solutions of a resonant multipoint second-order boundary value problem, with a fully differential equation. The noninvertibility of the linear ... -
On Some Fixed Point Results for 𝐻+-Type Contraction Mappings in Metric Spaces
(Hindawi, 2015)We prove some fixed point theorems for H+-type multivalued contractive mappings in the setting of Banach spaces and metric spaces. The results provided allow recovering different well-known results -
On some nonlinear boundary value problems related to a Black-Scholes model with transaction costs
(Springer, 2015)We deal with some generalizations on a Black-Scholes model arising in financial mathematics. As a novelty in this paper, we consider a variable volatility and abstract functional boundary conditions, which allow us to treat ... -
On the Existence of Eigenvalues of a Boundary Value Problem with Transmitting Condition of the Integral Form for a Parabolic-Hyperbolic Equation
(MDPI, 2020)In the paper, we investigate a local boundary value problem with transmitting condition of the integral form for mixed parabolic-hyperbolic equation with non-characteristic line of type changing. Theorem on strong solvability ... -
On the gamma-logistic map and applications to a delayed neoclassical model of economic growth
(Springer Nature, 2019-04)In this work, we study the stability properties of a delay differential neoclassical model of economic growth, based on the original model proposed by Solow (Q J Econ 70:65–94, 1956). We consider a logistic-type production ... -
On the linear fuzzy model associated with Caputo–Fabrizio operator
(SpringerOpen, 2018-06-05)In this paper, we introduce the fuzzy Caputo–Fabrizio operator under generalized Hukuhara differentiability concept. In this setting, we study the linear fuzzy fractional initial value problems and present the general ... -
On the second order properties of the multidimensional periodogram for regularly spaced data
(Society for Industrial and Applied Mathematics (SIAM), 2009)Recently there is growing interest in improving the level of knowledge of spatial and spatio-temporal processes using spectral techniques. The properties of the estimator of the spectral density, the periodogram, have been ... -
On the smoothness of solutions of the third order nonlinear differential equation
(Springer, 2017)In this work we study the following third order differential equation: Ly := y + (q(x, y) + λ)y = f ∈ L2(R), R = (–∞,∞),λ > 0, where q(x, y) ≥ 1 is a continuous function in all its variables. We will deal with the following ... -
On the stability properties of a delay differential neoclassical model of economic growth
(University of Szeged, 2018-06-26)The main aim of this paper is to establish sharp global stability conditions for the positive equilibrium of a well-known model of economic growth when a delay is considered in the production function. In order to deal ... -
On the stability properties of a delay differential neoclassical model of economic growth
(University of Szeged, 2018)The main aim of this paper is to establish sharp global stability conditions for the positive equilibrium of a well-known model of economic growth when a delay is considered in the production function. In order to deal ...