Recent Submissions

  • Computability and Beltrami fields in Euclidean space 

    Cardona Aguilar, Robert; Miranda Galcerán, Eva; Peralta-Salas, Daniel (2022-11-12)
    Article
    Open Access
    In this article, we pursue our investigation of the connections between the theory of computation and hydrodynamics. We prove the existence of stationary solutions of the Euler equations in Euclidean space, of Beltrami ...
  • On the generalized dimension and codimension of simple games 

    Molinero Albareda, Xavier; Riquelme Csori, Fabián; Roura Ferret, Salvador; Serna Iglesias, María José (2022-07-29)
    Article
    Restricted access - publisher's policy
    Weighted voting games are simple games that can be represented by a collection of integer weights for each player so that a coalition wins if the sum of the player weights matches or exceeds a given quota. It is known that ...
  • Interacting particles with Lévy strategies: limits of transport equations for swarm robotic systems 

    Estrada Rodríguez, Gissell; Gimperlein, Heiko (Society for Industrial and Applied Mathematics (SIAM), 2020-01)
    Article
    Open Access
    Lévy robotic systems combine superdiffusive random movement with emergent col-lective behavior from local communication and alignment in order to find rare targets or track objects.In this article we derive macroscopic ...
  • Treatment-induced shrinking of tumour aggregates: a nonlinear volume-filling chemotactic approach 

    Estrada Rodríguez, Gissell; Almeida, Luis; Oliver, Lisa; Peurichard, Diane; Poulain, Alexandre; Vallette, François (2021-09)
    Article
    Open Access
    Motivated by experimental observations in 3D/organoid cultures derived from glioblastoma, we propose a novel mechano-transduction mechanism where the introduction of a chemotherapeutic treatment induces mechanical changes ...
  • Decay of waves in strain gradient porous elasticity with Moore-Gibson-Thompson dissipation 

    Fernández García, José Ramon; Magaña Nieto, Antonio; Quintanilla de Latorre, Ramón (2022-09-05)
    Article
    Open Access
    We study a one-dimensional problem arising in strain gradient porous-elasticity. Three different Moore–Gibson–Thompson dissipation mechanisms are considered: viscosity and hyperviscosity on the displacements, and weak ...
  • Applying the geodetic detrending technique for investigating the consistency of GPS L2P(Y) in several receivers 

    Juan Zornoza, José Miguel; Sanz Subirana, Jaume; González Casado, Guillermo; Rovira Garcia, Adrià; Timote Bejarano, Cristhian Camilo; Orús Pérez, Raul (2022-11)
    Article
    Restricted access - publisher's policy
    Global Navigation Satellite System signals have been used for years to study high-frequency fluctuations (f>0.1Hz)intheionosphere. The customary procedure uses the geometry-free (GF) combination ofL1andL2carriers, for which ...
  • Valuative trees over valued fields 

    Alberich Carramiñana, Maria; Guàrdia Rubies, Jordi; Nart Vinyals, Enric; Roé Vallvé, Joaquim (Elsevier, 2023-01-15)
    Article
    Open Access
    For an arbitrary valued field (K, v) and a given extension v(K*) ¿¿ ¿ of ordered groups, we analyze the structure of the tree formed by all ¿-valued extensions of v to the polynomial ring K[x]. As an application, we find ...
  • How to fit a tree in a box 

    Akitaya, Hugo; Löffler, Maarten; Parada Muñoz, Irene María de (Springer Nature, 2022-10-01)
    Article
    Open Access
    We study compact straight-line embeddings of trees. We show that perfect binary trees can be embedded optimally: a tree with n nodes can be drawn on a vn by vn grid. We also show that testing whether a given rooted binary ...
  • Asymptotic stability for block triangular maps 

    Cima Mollet, Anna; Gasull Embid, Armengol; Mañosa Fernández, Víctor (2022-06)
    Article
    Open Access
    We prove a result concerning the asymptotic stability and the basin of attraction of fixed points for block triangular maps. This result is applied to some families of discrete dynamical systems and several types of ...
  • On the expected number of perfect matchings in cubic planar graphs 

    Noy Serrano, Marcos; Rué Perna, Juan José; Requile, Clement (2022-01-01)
    Article
    Open Access
    A well-known conjecture by Lovász and Plummer from the 1970s asserted that a bridgeless cubic graph has exponentially many perfect matchings. It was solved in the affirmative by Esperet et al. (Adv. Math. 2011). On the ...
  • Stallings automata for free-times-abelian groups: intersections and index 

    Delgado Pin, Jordi; Ventura Capell, Enric (2022-06-22)
    Article
    Open Access
    We extend the classical Stallings theory (describing subgroups of free groups as automata) to direct products of free and abelian groups: after introducing enriched automata (i.e., automata with extra abelian labels), we ...
  • Separating bichromatic point sets in the plane by restricted orientation convex hulls 

    Alegría Galicia, Carlos; Orden Martin, David; Seara Ojea, Carlos; Urrutia Galicia, Jorge (2022-10-10)
    Article
    Open Access
    We explore the separability of point sets in the plane by a restricted-orientation convex hull, which is an orientation-dependent, possibly disconnected, and non-convex enclosing shape that generalizes the convex hull. Let ...

View more