Ara es mostren els items 29-38 de 38

    • On central configurations of the kn-body problem 

      Barrabés Vera, Esther; Cors Iglesias, Josep Maria (2019-08-15)
      Article
      Accés obert
      We consider planar central configurations of the Newtonian kn-body problem consisting in k groups of regular n-gons of equal masses, called (k, n)-crown. We derive the equations of central configurations for a general (k, ...
    • On co-orbital quasi-periodic motion in the three-body problem 

      Cors Iglesias, Josep Maria; Palacián Subiela, Jesús Francisco; Yanguas Sayas, Patricia (2019-01-01)
      Article
      Accés obert
      Within the framework of the planar three-body problem we establish the existence of quasi-periodic motions and KAM $4$-tori related to the co-orbital motion of two small moons about a large planet where the moons move in ...
    • On strictly convex central configurations of the 2n-body problem 

      Barrabés Vera, Esther; Cors Iglesias, Josep Maria (2019-12-01)
      Article
      Accés obert
      We consider planar central configurations of the Newtonian 2n-body problem consisting in two twisted regular n-gons of equal masses. We prove the conjecture that for n=5 all convex central configurations of two twisted ...
    • On the central configurations of the planar 1 + 3 body problem 

      Corbera, M.; Cors Iglesias, Josep Maria; Llibre Saló, Jaume (2011)
      Article
      Accés obert
      We consider the Newtonian 4 body problem in the plane with a dominat mass M. We study the planar central configurations of this problem when the remaining masses are infinitesimal. We obtain two diferent classes of central ...
    • Spatial collinear restricted four-body problem with repulsive Manev potential 

      Barrabés Vera, Esther; Cors Iglesias, Josep Maria; Vidal Díaz, Claudio (2017-09-01)
      Article
      Accés obert
      We outline some aspects of the dynamics of an infinitesimal mass under the Newtonian attraction of three point masses in a symmetric collinear relative equilibria configuration when a repulsive Manev potential (-1/r+e/r2 ...
    • Stability of equilibrium points in the spatially restricted N + 1-body problem with Manev potential 

      Ascencio, Mauricio; Barrabés Vera, Esther; Cors Iglesias, Josep Maria; Vidal, Claudio (2023-01-01)
      Article
      Accés obert
      We study the dynamics of an infinitesimal mass under the gravitational attraction of primaries arranged in a planar ring configuration plus the influence of the central mass with a Manev potential (-1/r + e/r2), e ¿ 0, ...
    • Tails and bridges in the parabolic restricted three-body problem 

      Barrabés Vera, Esther; Cors Iglesias, Josep Maria; García Taberner, Laura; Ollé Torner, Mercè (2017-01-01)
      Article
      Accés obert
      After a close encounter of two galaxies, bridges and tails can be seen between or around them. A bridge would be a spiral arm between a galaxy and its companion, whereas a tail would correspond to a long and curving set ...
    • Taller de rellotges de sol 

      Cors Iglesias, Josep Maria (Escola Politècnica Superior d'Enginyeria de Manresa, 2009-11-20)
      Audiovisual
      Accés obert
      Intoducció als rellotges de sol: tipus i característiques. Procés de construcció d'un rellotge de sol.
    • Trapezoid central configurations 

      Corbera, Montserrat; Cors Iglesias, Josep Maria; Llibre Saló, Jaume; Perez Chavela, Ernesto (2019-04-01)
      Article
      Accés obert
      We classify all planar four–body central configurations where two pairs of the bodies are on parallel lines. Using cartesian coordinates, we show that the set of four–body trapezoid central configurations with positive ...
    • Uniqueness results for co-circular central configurations for power-law potentials 

      Cors Iglesias, Josep Maria; Hall, G.R.; Roberts, Gareth E. (2014-05-10)
      Article
      Accés obert
      For a class of potential functions including those used for the planar n-body and n-vortex problems, we investigate co-circular central configurations whose center of mass coincides with the center of the circle containing ...