Results overview: Found 147 records in 0.03 seconds.
Articles, 123 records found
Contributions to meetings and congresses, 6 records found
Research literature, 18 records found
Articles 123 records found  1 - 10nextend  jump to record:
1.
16 p, 2.3 MB Limit cycles of piecewise smooth differential equations on two dimensional torus / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Miranda Martins, Ricardo (Universidade Estadual de Campinas. Instituto de Matemática, Estatística e Computação Científica) ; Tonon, Durval José (Universidade Federal de Goiás. Instituto de Matemática e Estatística)
In this paper we study the limit cycles of some classes of piecewise smooth vector fields defined in the two dimensional torus. The piecewise smooth vector fields that we consider are composed by linear, Ricatti with constant coefficients and perturbations of these one, which are given in (3). [...]
2018 - 10.1007/s10884-017-9584-4
Journal of dynamics and differential equations, Vol. 30, Issue 3 (September 2018) , p. 1011-1027  
2.
40 p, 10.0 MB Dynamic rays of bounded-type transcendental self-maps of the punctured plane / Fagella Rabionet, Núria (Universitat de Barcelona. Departament de Matemàtiques i Informàtica) ; Martí-Pete, David (Open University. School of Mathematics and Statistics (UK))
We study the escaping set of functions in the class B∗, that is, transcendental self-maps of ℂ∗ for which the set of singular values is contained in a compact annulus of ℂ∗ that separates zero from infinity. [...]
2017 - 10.3934/dcds.2017134
Discrete and continuous dynamical systems. Series A, Vol. 37, Issue 6 (June 2017) , p. 3123-3160  
3.
Fatou components and singularities of meromorphic functions / Barański, Krzysztof (University of Warsaw. Institute of Mathematics (Poland)) ; Fagella Rabionet, Núria (Universitat de Barcelona. Institut de Matemàtiques. Departament de Matemàtiques i Informàtica) ; Jarque i Ribera, Xavier (Universitat de Barcelona. Institut de Matemàtiques. Departament de Matemàtiques i Informàtica) ; Karpińska, Bogusława (Warsaw University of Technology (Poland))
We prove several results concerning the relative position of points in the postsingular set P(f) of a meromorphic map f and the boundary of a Baker domain or the successive iterates of a wandering component. [...]
2020 - 10.1017/prm.2018.142
Proceedings of the Royal Society of Edinburgh Section A: Mathematics, Vol. 150, Issue 2 (April 2020) , p. 633-654  
4.
Centers of discontinuous piecewise smooth quasi-homogeneous polynomial differential systems / Chen, Hebai (Fuzhou University. College of Mathematics and Computer Science (China)) ; Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Tang, Yilei (Shanghai Jiao Tong University. School of Mathematical Sciences (China))
In this paper we investigate the center problem for the discontinuous piecewise smooth quasi-homogeneous but non-homogeneous polynomial differential systems. First, we provide sufficient and necessary conditions for the existence of a center in the discontinuous piecewise smooth quasi-homogeneous polynomial differential systems. [...]
2019 - 10.3934/dcdsb.2019150
Discrete and continuous dynamical systems. Series B, Vol. 24, Issue 12 (December 2019) , p. 6495-6509  
5.
29 p, 568.3 KB Global dynamics of Hořava-Lifshitz cosmology with non-zero curvature and a wide range of potentials / Gao, Fabao (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
The global dynamics of a cosmological model based on Hořava-Lifshitz gravity in the presence of curvature is described by using the qualitative theory of differential equations.
2020 - 10.1140/epjc/s10052-020-7714-3
European Physical Journal C, Vol. 80, Issue 2 (February 2020) , art. 137
2 documents
6.
Final evolutions of a class of May-Leonard Lotka-Volterra systems / Buzzi, Claudio (Universidade Estadual Paulista. Departamento de Matemática (Brazil)) ; Santos, Robson A.T. (Universidade Estadual Paulista. Departamento de Matemática (Brazil)) ; Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
We study a particular class of Lotka-Volterra 3-dimensional systems called May-Leonard systems, which depend on two real parameters a and b, when a + b = −1. For these values of the parameters we shall describe its global dynamics in the compactification of the non-negative octant of ℝ3 including its infinity. [...]
2020 - 10.1080/14029251.2020.1700635
Journal of Nonlinear Mathematical Physics, Vol. 27, Issue 2 (January 2020) , p. 267-278  
7.
13 p, 380.0 KB Dynamics of some three-dimensional Lotka-Volterra systems / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Zhang, Xiang (Shanghai Jiao Tong University. School of Mathematical Sciences)
We characterize the dynamics of the following two Lotka-Volterra differential systems: ̇x=x(r+ay+bz), ̇x=x(r+ax+by+cz), ̇y=y(r−ax+cz),and ̇y=y(r+ax+dy+ez), ̇z=z(r−bx−cy), ̇z=z(r+ax+dy+fz). [...]
2017 - 10.1007/s00009-017-0927-5
Mediterranean Journal of Mathematics, Vol. 14, Issue 3 (June 2017) , art. 126  
8.
22 p, 3.7 MB Theoretical conditions for the coexistence of viral strains with differences in phenotypic traits : A bifurcation analysis / Nurtay, Anel (Centre de Recerca Matemàtica) ; Hennessy, Matthew G. (Universitat Autònoma de Barcelona. Barcelona Graduate School of Mathematics (BGSMath)) ; Sardanyés, Josep (Universitat Autònoma de Barcelona. Barcelona Graduate School of Mathematics (BGSMath)) ; Alsedà i Soler, Lluís (Universitat Autònoma de Barcelona. Barcelona Graduate School of Mathematics (BGSMath)) ; Elena, Santiago F. (Santa Fe Institute (USA)) ; Universitat Autònoma de Barcelona. Departament de Matemàtiques
We investigate the dynamics of a wild-type viral strain which generates mutant strains differing in phenotypic properties for infectivity, virulence and mutation rates. We study, by means of a mathematical model and bifurcation analysis, conditions under which the wild-type and mutant viruses, which compete for the same host cells, can coexist. [...]
2019 - 10.1098/rsos.181179
Royal Society Open Science, Vol. 6, Issue 1 (January 2019) , art. 181179
2 documents
9.
Global dynamics of the Hořava-Lifshitz cosmological system / Gao, Fabao (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
Using the qualitative theory of the differential equations we describe the global dynamics of the cosmological model based on Hořava-Lifshitz gravity in a Friedmann-Lemaître-Robertson-Walker space time with zero curvature and without the cosmological constant term.
2019 - 10.1007/s10714-019-2635-x
General Relativity and Gravitation, Vol. 51, Issue 11 (November 2019) , art. 152  
10.
Global dynamics of a virus model with invariant algebraic surfaces / Dias, Fabio Scalco (Universidade Federal de Itajubá. Instituto de Matemática e Computação (Brazil)) ; Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Valls, Clàudia 1973- (Universidade de Lisboa. Instituto Superior Técnico. Departamento de Matemàtica)
In this paper by using the Poincaré compactification in R3 we make a global analysis for the virus system x˙=λ-dx-βxz,y˙=-ay+βxz z˙=ky-μz with (x, y, z) ∈ R3, β> 0, λ, a, d, k and μ are nonnegative parameters due to their biological meaning. [...]
2019 - 10.1007/s12215-019-00417-0
Rendiconti del Circolo Matematico di Palermo, (May 2019)  

Articles : 123 records found   1 - 10nextend  jump to record:
Contributions to meetings and congresses 6 records found  
1.
2 p, 104.8 KB Investigating opinion dynamics using the FreqNet model / Boerma, Susan (University of Groningen) ; Albers, Casper (University of Groningen) ; Jager, Wander (University of Groningen)
Human life is based on social interactions. These interactions are dictated by the attitudes and beliefs people have. Personal attitudes and beliefs are not constant over time but are influenced on an individual level. [...]
2014
Social Simulation Conference. Bellaterra, Cerdanyola del Valles, 1a : 2014  
2.
4 p, 176.2 KB Triadic balance and closure as drivers of the evolution of cooperation / Righi, Simone (Hungarian Academy of Sciences) ; Takacs, Karoly (Hungarian Academy of Sciences)
The prevalence of human cooperation continues to be one of the biggest puzzles for scientists. Structured interactions and clustering of cooperators are recognized mechanisms that help the dissemination of cooperative behavior. [...]
2014
Social Simulation Conference. Bellaterra, Cerdanyola del Valles, 1a : 2014  
3.
4 p, 280.3 KB A spatially explicit agent-based model of opinion and reputation dynamics / Voorn, George van (Wageningen University and Research) ; Ligtenberg, Arend (Laboratory of Geo-information Science and Remote Sensing) ; Broeke, Guus ten (Wageningen University and Research)
Key in spatial planning are opinion dynamics (the exchange of opinions between agents and the consecutive updates in opinions by individual agents). A number of possibly relevant factors that are commonly excluded in well-known models of opinion dynamics are peer pressure, localized opinion formation through isolation, and the reputation of the agents involved. [...]
2014
Social Simulation Conference. Bellaterra, Cerdanyola del Valles, 1a : 2014  
4.
4 p, 280.7 KB Demographic agent-based simulation of gambians immigrants in Spain / Montañola-Sales, Cristina (Universitat Politècnica de Catalunya. Departament d'Estadística i Investigació Operativa) ; Casanovas Garcia, Josep (Universitat Politècnica de Catalunya. Departament d'Estadística i Investigació Operativa) ; Kaplan Marcusán, Adriana (Universitat Autònoma de Barcelona. Departament d'Antropologia Social i Cultural) ; Cela-Espín, Jose Maria (Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors)
Changes in our society have created a challenge for policymakers, who confront a need of tools to evaluate the possible effects of their policies. Agent-based modelling and simulation is a promising methodology which can be used in the study of population dynamics. [...]
2014
Social Simulation Conference. Bellaterra, Cerdanyola del Vallès, 1a : 2014  
5.
3 p, 824.1 KB Topic recipe-based social simulation for research dynamics analysis / Lee, Keeheon (Yonsei University) ; Kim, Chang Ouk (Yonsei University)
In this paper, we introduce an agent-based modeling and simulation model for research dynamics analysis. Since researchers constitute research systems in research dynamics, modelling the behavior of a researcher is a key to this method. [...]
2014
Social Simulation Conference. Bellaterra, Cerdanyola del Vallès, 1a : 2014  
6.
12 p, 1.6 MB Modelling the impact of beliefs and communication on attitude dynamics : a cognitive agent-based approach / Brousmiche, Kei-Leo (Université de Paris VI) ; Kant, Jean-Daniel (Université de Paris VI) ; Sabouret, Nicolas (Centre national de la recherche scientifique (França)) ; Fournier, Stephane (Airbus Defense and Space) ; Prenot-Guinard, Francois (Airbus Defense and Space)
In the context of military training for stabilization operation of a crisis zone with civilian population, understanding the formation of attitude and its dynamics is a key issue. This paper presents a multi-agent model for simulating attitude formation and change based on individual's perception of information and its diffusion through communication. [...]
2014
Social Simulation Conference. Bellaterra, Cerdanyola del Vallés, 1a : 2014  

Research literature 18 records found  1 - 10next  jump to record:
1.
29 p, 889.5 KB Dinámica reciente de la tenencia de la vivienda principal en España / Módenes Cabrerizo, Juan Antonio
Se propone el concepto de sistema dinámico residencial, compuesto por las relaciones establecidas entre elementos sociodemográficos y residenciales que evolucionan en el tiempo, el espacio, la dimensión social y el ciclo de vida. [...]
En l'article es proposa el concepte de sistema dinàmic residencial, format per les relacions establertes entre elements sociodemogràfics i residencials que evolucionen en el temps, l'espai, la dimensió social i el cicle de vida. [...]
The concept of dynamic residential system is presented here, this consisting of the relations established between socio-demographic and residential elements evolving over time, space, the social dimension and life cycle. [...]

Bellaterra : Centre d'Estudis Demogràfics, 2009 (Papers de demografia (Centre d'Estudis Demogràfics) ; 351)  
2.
22 p, 741.4 KB El impacto de los movimientos migratorios sobre la movilidad habitual por trabajo en Cataluña / Ajenjo, Marc, 1965- ; Sabater i Coll, Albert
A menudo la relación entre movilidad habitual por trabajo y movimientos migratorios es analizada teniendo en cuenta solamente uno de los componentes de la movilidad por trabajo, el porcentaje de trabajadores que cambian de municipio para trabajar, prescindiendo, en cambio, de la distancia entre la residencia y el trabajo. [...]
Tot sovint la relació entre la mobilitat habitual per treball i els moviments migratoris s'analitza tenint en compte només un dels components de la mobilitat laboral, el percentatge de treballadors que canvien de municipi per a treballar, prescindint de la distància entre la residència i el lloc de treball. [...]
Often the way in which labour mobility and residential mobility are examined only takes into account a single issue: the percentage of commuters who make a change of municipality to reach work. In turn, the variable distance from the place of residence to the workplace is not considered. [...]

Bellaterra : Centre d'Estudis Demogràfics, 2003 (Papers de demografia (Centre d'Estudis Demogràfics) ; 231)  
3.
32 p, 1.9 MB Relació funcional entre la por i efectes cognitius-emocionals en l'escalada esportiva : ús de la por com a eina terapèutica. / Bullich Vilarrubias, Raimon ; Sanz Ruíz, Antoni, dir. (Departament de Psicologia Bàsica, Evolutiva i de l'Educació) ; Universitat Autònoma de Barcelona. Facultat de Psicologia
Les emocions juguen un paper molt important en la cognició així com la cognició en les emocions. Aquesta relació bidireccional pot tenir un valor terapèutic molt important. En aquesta investigació, dins del marc del projecte Teràpia d'Activitats a la Natura (NAT), s'ha volgut estudiar la relació funcional entre la por induïda per l'escalada esportiva en roca i diversos efectes cognitius i afectius relacionats amb aquesta emoció (afectivitat positiva,atenció selectiva, fatiga, capacitat personal, control delegat i afectivitat negativa). [...]
Emotions play a very important role in cognition and vice versa. This bidirectional relationship may have a huge therapeutic value. In the context of the Therapy of Activities in Nature (NAT),this research aims to study the functional relationship between the fear induced by rock climbing and different cognitive and affective effects related to this emotion (positive affectivity, selective attention, fatigue, self-esteem, delegated control and negative affectivity). [...]

2019
Graduat o Graduada en Psicologia [954]  
4.
20 p, 1.7 MB Poverty among children and youth in Spain : the role of parents and youth employment status / Cantó Sánchez, Olga ; Mercader, Magda ; Universitat Autònoma de Barcelona. Departament d'Economia Aplicada
1999 (Document de treball (Universitat Autònoma de Barcelona. Departament d'Economia Aplicada) ; 99.07)  
5.
51 p, 646.6 KB Asymmetric trade liberalizations and current account dynamics / Barattieri, Alessandro
In this paper, I show a strong positive correlation between the value-added share of manufacturing in 2000 and current account balances in 2007 for the Euro area countries. I propose asymmetries in the timing of trade liberalizations as a new mechanism affecting the dynamics of the current account. [...]
The ADEMU Working Paper Series is being supported by the European Commission Horizon 2020 European Union funding for Research & Innovation, grant agreement No 649396.

2016 (ADEMU Working Paper Series ; 18)  
6.
32 p, 2.1 MB Dynamique démographique et différentiation territoriale en Catalogne, 1787 et 1860 / Sancho Valverde, Socorro ; Universitat Autònoma de Barcelona. Centre d'Estudis Demogràfics
Bellaterra Centre d'Estudis Demogràfics 1998 (Papers de demografia (Centre d'Estudis Demogràfics) ; 136)  
7.
292 p, 5.5 MB Application of Molecular Dynamics methods to the study of biological systems / Perez Benito, Laura, autor ; Pardo Carrasco, Leonardo, supervisor acadèmic ; Cordomí Montoya, Arnau, supervisor acadèmic ; Tresadern, Gary, supervisor acadèmic ; Duñach, Mireia, supervisor acadèmic ; Universitat Autònoma de Barcelona. Departament de Bioquímica i Biologia Molecular
La aplicación de métodos de dinámica molecular (MD) para el estudio de sistemas biológicos. Esta tesis se centra en la aplicación tanto de dinámica molecular clásica como perturbación de energía libre (FEP) para estudiar sistemas biológicos tales como los receptores acoplados a proteínas G y los inhibidores de BACE1. [...]
Application of Molecular Dynamics (MD) methods to the study of biological systems. This thesis is focused on the application of both classical MD and free energy perturbation (FEP) to study biological systems such as G protein-coupled receptors and BACE1 inhibitors. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2017  
8.
112 p, 4.9 MB Connectivity of Julia sets of transcendental meromorphic functions / Taixés i Ventosa, Jordi ; Fagella Rabionet, Núria, dir. (Universitat de Barcelona. Grup de Sistemes Dinàmics) ; Jarque i Ribera, Xavier, dir. (Universitat de Barcelona)
Newton's method associated to a complex holomorphic function f is defined by the dynamical system Nf(z) = z - f(z) / f'(z). As a root-finding algorithm, a natural question is to understand the dynamics of Nf about its fixed points, as they correspond to the roots of the function f. [...]
[Barcelona] : Universitat de Barcelona 2011  
9.
1 p, 2.0 MB Structural dynamics of a Mediterranean pollination network : the influence of flowering phenology on the community structure / Ramoneda Massagué, Josep ; Rodrigo Domínguez, Anselm, dir. (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Universitat Autònoma de Barcelona. Facultat de Biociències
2015
Grau en Biologia [812]  
10.
156 p, 4.0 MB Redescubrir la proximidad urbana. Componentes socioespaciales de la movilidad cotidiana sostenible en Barcelona / Marquet Sardà, Oriol ; Miralles-Guasch, Carme, 1961- , dir. (Universitat Autònoma de Barcelona. Departament de Geografia) ; Universitat Autònoma de Barcelona. Departament de Geografia
Distancias, viajes al trabajo, vehículo privado, velocidades… éstos son conceptos comunes en los estudios tradicionales de transporte que han buscado durante años gestionar la movilidad con un objetivo común: facilitar el movimiento y reducir los tiempos de viaje. [...]
Distances, commuting, private car, travel speeds… those are common words in traditional transport studies, which have tried for years to manage motorized mobility with one common goal: to facilitate movement and reduce travel times. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2015
3 documents

Research literature : 18 records found   1 - 10next  jump to record:
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