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    Article

    Overview and comparison of approaches towards the planar restricted five-body problem with primaries forming an axisymmetric four-body central configuration

    The aim of this paper is to present recent results on the restricted five-body problem where the primaries are located at a known central configuration having the x\(x\)-axis as symmetry axis, so that two bodies wi...

    Martha Alvarez-Ramírez, Mario Medina in Astrophysics and Space Science (2020)

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    Article

    Some Qualitative Features of the Isosceles Trapezoidal Four-Body Problem

    In this article, we present a novel survey of known qualitative features of the isosceles trapezoidal four-body problem, that has three degrees of freedom, as well as its two subsystems with two degrees of fre...

    Martha Alvarez-Ramírez, Mario Medina in Qualitative Theory of Dynamical Systems (2020)

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    Article

    The Rhomboidal 4-Body Problem Revisited

    We consider the planar rhomboidal 4-body problem where the masses are equal by pairs. In this paper we briefly review some recent results related to binary and total collision regularization, central configura...

    Martha Alvarez-Ramírez, Mario Medina in Qualitative Theory of Dynamical Systems (2015)

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    Article

    The trapezoidal collinear four-body problem

    This paper consider the trapezoidal collinear four-body problem as a model for binary-binary gravitational interaction in star clusters. It has two degrees of freedom, it also is a sub-problem of the trapezoid...

    Martha Alvarez-Ramírez, Mario Medina, Claudio Vidal in Astrophysics and Space Science (2015)

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    Article

    A model for binary-binary close encounters and collisions from a dynamical point of view

    The goal of this paper is to provide a model for binary-binary interactions in star clusters, which is based on simultaneous binary collision of a special case of the one-dimensional 4-body problem where four ...

    Martha Alvarez-Ramírez, Mario Medina in Astrophysics and Space Science (2014)

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    Article

    Symbolic dynamics in the symmetric collinear four-body problem

    In this article we prove the existence of a countable number of ejection-collision orbits for the symmetric collinear four body problem with negative energy. These orbits come out from total collision, pass th...

    Ernesto A. Lacomba, Mario Medina in Qualitative Theory of Dynamical Systems (2004)

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    Chapter and Conference Paper

    A framework for adaptive storage input/output on computational grids

    Emerging computational grids consist of distributed collections of heterogeneous sequential and parallel systems and irregular applications with complex, data dependent execution behavior and time varying reso...

    Huseyin Simitci, Daniel A. Reed, Ryan Fox in Parallel and Distributed Processing (1999)

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    Chapter

    Matrix Multiplication on Digital Signal Processors and Hierarchical Memory Systems

    We discuss map** the matrix multiplication algorithm onto a two-level hierarchical memory system which incorporates DMA capabilities between levels, as available on Digital Signal Processors (DSPs). We show ...

    Ismael Palacios, Mario Medina, Jaime Moreno in Computer Science (1992)