Now showing items 1-5 of 21

    • Ricci solitons on four-dimensional Lorentzian Lie groups 

      Ferreiro-Subrido, María; García Río, Eduardo; Vázquez Lorenzo, Ramón (Springer, 2022)
      We determine all non-Einstein Ricci solitons on four-dimensional Lorentzian Lie groups whose soliton vector field is left-invariant. In addition to pp-wave and plane wave Lie groups, there are four families of Lorentzian ...
    • Homogeneous generalized Einstein manifolds in dimension four 

      García Río, Eduardo; Mariño-Villar, Rodrigo; Vázquez Abal, María Elena; VÁZQUEZ-LORENZO, RAMÓN (Wiley, 2021)
      We classify homogeneous four-dimensional manifolds satisfying a curvature condition which naturally generalizes the Einstein one. Our work leads to new examples of self-similar solutions of the two-loop renormalization group flow
    • Stochastic smoothing of point processes for wildlife-vehicle collisions on road networks 

      Borrajo García, María Isabel; Comas Rodríguez, Carles; Costafreda-Aumedes, Sergi; Mateu, Jorge (Springer, 2021)
      Wildlife-vehicle collisions on road networks represent a natural problem between human populations and the environment, that affects wildlife management and raise a risk to the life and safety of car drivers. We propose a ...
    • Kalman filter and classical Preisach hysteresis model applied to the state of charge battery estimation 

      Venegas, Pablo; Gómez Pedreira, Dolores; Arrinda, Mikel; Oyarbide, Mikel; Macicior, Haritz; Bermúdez de Castro López-Varela, Alfredo (Elsevier, 2022)
      The goal of this work is first to include a hysteresis model in the classical equivalent circuit model (ECM) for a battery system and then to improve the estimation of the state of charge (SoC) by applying the Extended ...
    • Solution of a fractional logistic ordinary differential equation 

      Nieto Roig, Juan José (Elsevier, 2022)
      We solve the logistic differential equation of fractional order and non-singular kernel. The analytical solution is obtained

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