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Results overview: Found 15 records in 0.01 seconds.
Articles, 13 records found
Research literature, 2 records found
Articles 13 records found  1 - 10next  jump to record:
1.
28 p, 2.8 MB Evaluación de la equidad del servicio de transporte público : el caso de Palma de Mallorca / Ruiz, Maurici (Universitat de les Illes Balears) ; Segui Pons, Joana Maria (Universitat de les Illes Balears) ; Mateu Lladó, Jaume (Universitat de les Illes Balears) ; Martínez Reynés, Maria Rosa (Universitat de les Illes Balears)
La planificación sostenible del transporte público requiere la consideración de la equidad territorial y social. El análisis de la equidad precisa de un profundo conocimiento del servicio así como de las características territoriales y sociales dónde se implanta. [...]
2016 - 10.3989/estgeogr.201621
Estudios geográficos, Vol. LXXVII Núm. 281 (juliol-desembre 2016) , p. 619-646  
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2.
15 p, 5.1 MB Stability of periodic orbits in the averaging theory : applications to Lorenz and Thomas' differential systems / Cândido, Murilo R. (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
We study the kind of stability of the periodic orbits provided by higher order averaging theory. We apply these results for determining the k-hyperbolicity of some periodic orbits of the Lorenz and Thoma's differential system.
2018 - 10.1142/S0218127418300070
International journal of bifurcation and chaos in applied sciences and engineering, Vol. 28, No. 3 (2018) , art. 1830007  
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3.
27 p, 834.6 KB Zero-Hopf bifurcations in a hyperchaotic Lorenz system II / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Cândido, Murilo R. (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
Recently sixteen 3-dimensional differential systems exhibiting chaotic motion and having no equilibria have been studied, and it has been graphically observed that these systems have a period-doubling cascade of periodic orbits providing the route to their chaotic motions. [...]
2018
International journal of nonlinear science, Vol. 25, issue 1 (2018) , p. 3-26  
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4.
9 p, 590.4 KB On the periodic solutions of the 5-dimensional Lorenz equation modeling coupled Rosby waves and gravity waves / de Carvalho, Tiago (Universidade Estadual Paulista (Brasil). Departamento de Matemática) ; Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
2017 - 10.1142/S0218127417500900
International journal of bifurcation and chaos in applied sciences and engineering, Vol. 27 Núm. 6 (Junio 2017)  
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5.
18 p, 299.0 KB On a property of Lorenz curves with monotone elasticity and its application to the study of inequality by using tax data / Sordo Díaz, Miguel Ángel (Universidad de Cádiz. Departamento de Estadística e Investigación Operativa) ; Berihuete Macías, Ángel (Universidad de Cádiz. Departamento de Estadística e Investigación Operativa) ; Ramos González, Carmen Dolores (Universidad de Cádiz. Departamento de Estadística e Investigación Operativa) ; Ramos Romero, Héctor Manuel (Universidad de Cádiz. Departamento de Estadística e Investigación Operativa)
The Lorenz curve is the most widely used graphical tool for describing and comparing inequality of income distributions. In this paper, we show that the elasticity of this curve is an indicator of the effect, in terms of inequality, of a truncation of the income distribution. [...]
2017 - 10.2436/20.8080.02.50
SORT : statistics and operations research transactions, Vol. 41 Núm. 1 (January-June 2017) , p. 55-72 (Articles)  
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6.
12 p, 680.4 KB New results on averaging theory and applications / Cândido, Murilo R. (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
The usual averaging theory reduces the computation of some periodic solutions of a system of ordinary differential equations, to find the simple zeros of an associated averaged function. When one of these zeros is not simple, i. [...]
2016 - 10.1007/s00033-016-0682-7
ZAMP. Journal of Applied Mathematics and Physics, Vol. 67:106 (2016) , p. 11  
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7.
5 p, 607.4 KB On the analytic integrability of the 5-dimensional Lorenz system for the gravitiy-wave activity / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Saghin, Radu (Universitat Autònoma de Barcelona. Centre de Recerca per a l'Educació Científica i Matemàtica) ; Zhang, Xiang (Shanghai Jiaotong University. Department of Mathematics)
The 5-dimensional Lorenz system for the coupled Rosby and gravity waves has exactly two independent analytic first integrals.
2014 - 10.1090/S0002-9939-2013-11773-9
Proceedings of the American Mathematical Society, Vol. 142 Núm. 2 (2014) , p. 531-537  
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8.
6 p, 584.8 KB Zero-Hopf bifurcation for a class of Lorenz-type systems / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Pérez-Chavela, Ernesto (UAM-Iztapalapa(México). Departamento de Matemáticas) ; Alfaro Aguilar, Felipe (UACM(México). Academia de Matemáticas)
We apply the averaging theory to a class of three-dimensional autonomous quadratic polynomial differential systems known as Lorenz-type systems, and we prove the existence of a small amplitude periodic orbit bifurcating from a degenerate zero-Hopf equilibrium of these systems.
2014 - 10.3934/dcdsb.2014.19.1731
Discrete and continuous dynamical systems. Series B, Vol. 19 Núm. 6 (2014) , p. 1731-1736  
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9.
9 p, 311.8 KB Zero-Hopf bifurcation in a hyperchaotic Lorenz system / Cid-Montiel, Lorena (Wilfrid Laurier University(Canada). Department of Mathematics) ; Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Stoica, Cristina (Wilfrid Laurier University(Canada). Department of Mathematics)
We characterize the zero-Hopf bifurcation at the singular points of a parameter co-dimension four hyperchaotic Lorenz system. Using averaging theory, we find sufficient conditions so that at the bifurcation points two periodic solutions emerge and describe the stability of these orbits.
2014 - 10.1007/s11071-013-1085-3
Nonlinear Dynamics, Vol. 75 (2014) , p. 561-566  
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10.
14 p, 765.8 KB On the dynamics of a system that bridges the gap between Lorenz and Chen systems / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Rodrigues, Ana (University of Exeter. College of Engineering, Mathematics and Physics)
A one-parameter family of differential systems that bridges the gap between the Lorenz and the Chen systems was proposed by Lu, Chen, Cheng and Celikovsy. The goal of this paper is to analyze what we can say using analytic tools about the dynamics of this one-parameter family of differential systems. [...]
2015 - 10.1142/S0218127415501229
International journal of bifurcation and chaos in applied sciences and engineering, Vol. 25 Núm. 9 (2015) , p. 1550122 (9 pages)  
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Articles : 13 records found   1 - 10next  jump to record:
Research literature 2 records found  
1.
16 p, 101.6 MB Equitat social a la xarxa ferroviària d'Espanya : anàlisi de la xarxa de transport públic ferroviari a les grans ciutats espanyoles / Ceballos Escudero, Judith ; Nel·lo, Oriol, 1957-, dir. (Universitat Autònoma de Barcelona. Departament de Geografia) ; Universitat Autònoma de Barcelona. Facultat de Filosofia i Lletres ; Universitat Autònoma de Barcelona. Departament de Geografia
Les grans ciutats espanyoles disposen d'un servei de transport ferroviari relativament extens. Aquests serveis de transport públic poden contribuir a incrementar o reduir les diferències entre els grups socials en relació a l'ús de la ciutat, la gestió del temps, les oportunitats laborals i l'accés als serveis. [...]
In Spain we find an extensive railway transport service, which connects different major centers. At the urban level, public transport services can help increase or decrease the differences between social groups in terms of city use, time management, job opportunities, and access to services. [...]
Bellaterra : Universitat Autònoma de Barcelona, 2022
Màster Universitari en Estudis Territorials i Planejament [1475]  
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2.
45 p, 358.7 KB A theoretical and practical study on linear reforms of dual taxes / Calonge, Samuel (Universitat de Barcelona) ; Tejada, Oriol (Universitat de Barcelona) ; Xarxa de Referència en Economia Aplicada (XREAP)
We extend the linear reforms introduced by Pf¨ahler (1984) to the case of dual taxes. We study the relative effect that linear dual tax cuts have on the inequality of income distribution -a symmetrical study can be made for dual linear tax hikes-. [...]
Xarxa de Referència en Economia Aplicada (XREAP) 2009 (XREAP ; 2009-1)  
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