Browsing Matemática Aplicada II by Title
Now showing items 217-236 of 342
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Article
Non-hyperbolic boundary equilibrium bifurcations in planar Filippov systems: a case study approach
(WorldScientific Open Access, 2008)Boundary equilibrium bifurcations in piecewise smooth discontinuous systems are characterized by the collision of an ...
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Article
Nonlinear age-dependent diffusive equations: a bifurcation approach
(Elsevier, 2008-05-01)The main goal of this paper is the study of the existence and uniqueness of positive solutions of some nonlinear age-dependent ...
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Article
Nontransferable utility games with fuzzy coalition restrictions
(Elsevier, 2018-10)A value for nontransferable utility (NTU) games with fuzzy coalition restrictions is introduced and characterized. In a ...
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Presentation
Note on the number of obtuse angles in point sets
(2013)In 1979 Conway, Croft, Erd\H{o}s and Guy proved that every set SS of nn points in general position in the plane determines ...
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Presentation
Un nuevo enfoque para la determinación de horarios de unidades rodantes
(ADINGOR. Asociación para el Desarrollo de la Ingeniería de Organización, 2010)El objetivo principal en este trabajo es la programación de horarios de viajes en tren de acuerdo a los deseos de movilidad ...
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Article
Observation of a tricritical wedge filling transition in the 3D Ising model
(Institute of Physics Publishing, 2014)In this letter we present evidences of the occurrence of a tricritical filling transition for an Ising model in a linear ...
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Presentation
On 4-connected geometric graphs
(2013)Given a set S of n points in the plane, in this paper we give a necessary and sometimes sufficient condition to build a 4-connected non-crossing geometric graph on S.
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Article
On a seminal paper by Karlin and Mcgregor
(2013)The use of spectral methods to study birth-and-death processes was pioneered by S. Karlin and J. McGregor. Their expression ...
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Article
On completely continuous maps from locally convex spaces to L1
(European Mathematical Society, 1990) -
Article
On finding widest empty curved corridors
(Elsevier, 2007)An α-siphon of width w is the locus of points in the plane that are at the same distance w from a 1-corner polygonal chain ...
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Presentation
On making a graph crossing-critical
(2013)A graph is crossing-critical if its crossing number decreases when we remove any of its edges. Recently it was proved that ...
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Article
On Pták's generalization of Hankel operators
(Springer, 2001)In 1997 Pták defined generalized Hankel operators as follows: Given two contractions T1 ∈ B(H1) and T2 ∈ B(H2), an operator ...
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Presentation
On the barrier-resilience of arrangements of ray-sensors
(2013)Given an arrangement A of n sensors and two points s and t in the plane, the barrier resilience of A with respect to s and ...
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Article
On the convergence order of the finite element error in the kinetic energy for high Reynolds number incompressible flows
(Elsevier, 2021-11)The kinetic energy of a flow is proportional to the square of the L2(Ω) norm of the velocity. Given a sufficient ...
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Presentation
On the enumeration of permutominoes
(2013)Although the exact counting and enumeration of polyominoes remain challenging open problems, several positive results were ...
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Article
On the existence and uniqueness of limit cycles in Liénard differential equations allowing discontinuities
(IOP Science, 2008)In this paper we study the non-existence and the uniqueness of limit cycles for the Liénard differential equation of the ...
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On the existence and uniqueness of limit cycles in planar continuous piecewise linear systems without symmetry
(Elsevier, 2013-10)Some techniques to show the existence and uniqueness of limit cycles, typically stated for smooth vector fields, are ...
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Article
On the influence of the nonlinear term in the numerical approximation of Incompressible Flows by means of proper orthogonal decomposition methods
(Elsevier, 2023-02)We consider proper orthogonal decomposition (POD) methods to approximate the incompressible Navier–Stokes equations. We ...
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On the integrability problem for the Hopf-zero singularity and its relation with the inverse Jacobi multiplier
(Elsevier Inc., 2021)In this paper we use the orbital normal form of the nondegenerate Hopf-zero singularity to obtain necessary conditions for ...
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Article
On the Mikusiński-Antosik diagonal theorem
(De Gruyter Open, 1992)We give and improvement cf de Mikusinski-Antosik Diagonal Theorem. From this result we obtain as corollaries the other matrix lemmas used by P. Antosik and C. Swartz, showing that they have a common character