Exploració per autor "Mañosa Fernández, Víctor"
Ara es mostren els items 108-127 de 176
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Non autonomous 2-periodic Gumovski-Mira difference equations
Cima Mollet, Anna; Gasull Embid, Armengol; Mañosa Fernández, Víctor (2011-06-01)
Report de recerca
Accés obertWe consider two types of non-autonomous 2-periodic Gumovski-Mira difference equations. We show that while the corresponding autonomous recurrences are conjugated, the behavior of the sequences generated by the 2-periodic ... -
Non-autonomous two periodic Gumovski-Mira difference equations
Cima Mollet, Anna; Gasull Embid, Armengol; Mañosa Fernández, Víctor (2012-12)
Article
Accés obertWe consider two types of nonautonomous two-periodic Gumovski–Mira difference equations. We show that while the corresponding autonomous recurrences are conjugated, the behavior of the sequences generated by the two-periodic ... -
Non-integrability of measure preserving maps via Lie symmetries
Cima Mollet, Anna; Gasull Embid, Armengol; Mañosa Fernández, Víctor (2015-03-18)
Report de recerca
Accés obertWe consider the problem of characterizing, for certain natural number m, the local C^m-non-integrability near elliptic fixed points of smooth planar measure preserving maps. Our criterion relates this non-integrability ... -
Non-integrability of measure preserving maps via Lie symmetries
Cima Mollet, Anna; Gasull Embid, Armengol; Mañosa Fernández, Víctor (2015-11-15)
Article
Accés obertWe consider the problem of characterizing, for certain natural number m, the local C^m-non-integrability near elliptic fixed points of smooth planar measure preserving maps. Our criterion relates this non-integrability ... -
Notícia d'una taxonomia inexistent
Mañosa Fernández, Víctor (2015-02)
Article
Accés obert -
On 2- and 3-periodic Lyness difference equations
Cima Mollet, Anna; Gasull Embid, Armengol; Mañosa Fernández, Víctor (2011-06-09)
Article
Accés obertWe describe the sequences {xn}n given by the non-autonomous second-order Lyness difference equations xnþ2 ¼ ðan þ xnþ1Þ=xn, where {an}n is either a 2-periodic or a 3- periodic sequence of positive values and the initial ... -
On periodic solutions of 2-periodic Lyness difference equations
Bastien, Guy; Mañosa Fernández, Víctor; Rogalski, Marc (2012-01-04)
Altres
Accés obertWe study the existence of periodic solutions of the non--autonomous periodic Lyness' recurrence u_{n+2}=(a_n+u_{n+1})/u_n, where {a_n} is a cycle with positive values a,b and with positive initial conditions. It is known ... -
On periodic solutions of 2-periodic Lyness' equations
Bastien, Guy; Mañosa Fernández, Víctor; Rogalski, Marc (2013-04)
Article
Accés obertWe study the existence of periodic solutions of the nonautonomous periodic Lyness' recurrenceun+2 = (an + un+1)/un, where {an}n is a cycle with positive values a, b and with positive initial conditions. It is known that ... -
On Poncelet's maps
Cima Mollet, Anna; Gasull Embid, Armengol; Mañosa Fernández, Víctor (2010-08-08)
Article
Accés obertGiven two ellipses, one surrounding the other one, Poncelet introduced a map P from the exterior one to itself by using the tangent lines to the interior ellipse. This procedure can be extended to any two smooth, nested ... -
On some rational piecewise linear rotations
Cima Mollet, Anna; Gasull Embid, Armengol; Mañosa Fernández, Víctor; Mañosas, Francesc (Taylor & Francis Group, 2023-09-26)
Article
Accés restringit per política de l'editorialWe study the dynamics of the piecewise planar rotations F¿(z)=¿(z-H(z)), with z¿C , H(z)=1 if Im(z)=0, H(z)=-1 if Im(z)<0, and ¿=eia¿C , being a a rational multiple of p. Our main results establish the dynamics in the so ... -
On some rational piecewise linear rotations
Cima, Anna; Gasull, Armengol; Mañosa Fernández, Víctor; Mañosas, Francesc (2023-06-30)
Report de recerca
Accés obertWe study the dynamics of the piecewise planar rotations $F_{\lambda}(z)=\lambda (z-H(z)), $ with $z\in\C$, $H(z)=1$ if $\mathrm{Im}(z)\ge0,$ $H(z)=-1$ if $\mathrm{Im}(z)<0,$ and $\lambda=\mathrm{e}^{i \alpha} \in\C$, being ... -
On the accumulation points of non-periodic orbits of a difference equation of fourth order
Linero Bas, Antonio; Mañosa Fernández, Víctor; Nieves Roldán, Daniel (2023-06-22)
Report de recerca
Accés obertIn this paper, we are interested in analyzing the dynamics of the fourth-order difference equation x_{n+4}=max{x_{n+3},x_{n+2},x_{n+1},0}-x_n, with arbitrary real initial conditions. We fully determine the accumulation ... -
On the accumulation points of non-periodic orbits of a difference equation of fourth order
Linero Bas, Antonio; Mañosa Fernández, Víctor; Nieves Roldán, Daniel (Elsevier, 2024-03-15)
Article
Accés restringit per política de l'editorialIn this paper, we are interested in analyzing the dynamics of the fourth-order difference equation xn+4 =max{xn+3, xn+2, xn+1, 0} -xn, with arbitrary real initial conditions. We fully determine the accumulation point sets ... -
On the set of periods of the 2-periodic Lyness' equation
Bastien, Guy; Mañosa Fernández, Víctor; Rogalski, Marc (2012)
Comunicació de congrés
Accés obertWe study the periodic solutions of the non-autonomous periodic Lyness’ recurrence un+2=(an+un+1)/un, where {an}n is a cycle with positive values a,b and with positive initial conditions. Among other methodological issues ... -
On the set of periods of the 2-periodic Lyness’ Equation
Bastien, Guy; Mañosa Fernández, Víctor; Rogalski, Marc (2013-07-25)
Report de recerca
Accés obertWe study the periodic solutions of the non–autonomous periodic Lyness’ recurrence un+2 = (an +un+1)=un, where fangn is a cycle with positive values a,b and with positive initial conditions. Among other methodological issues ... -
On two and three periodic Lyness difference equations
Cima Mollet, Anna; Gasull Embid, Armengol; Mañosa Fernández, Víctor (2009-12-26)
Report de recerca
Accés obertWe describe the sequences {x_n}_n given by the non-autonomous second order Lyness difference equations x_{n+2}=(a_n+x_{n+1})/x_n, where {a_n}_n is either a 2-periodic or a 3-periodic sequence of positive values and the ... -
Parrondo's dynamic paradox for the stability of non-hyperbolic fixed points
Cima Mollet, Anna; Gasull Embid, Armengol; Mañosa Fernández, Víctor (2018-02)
Article
Accés obertWe show that for periodic non-autonomous discrete dynamical systems, even when a common fixed point for each of the autonomous associated dynamical systems is repeller, this fixed point can became a local attractor for ... -
Parrondo's dynamic paradox for the stability of non-hyperbolic fixed points
Cima Mollet, Anna; Gasull Embid, Armengol; Mañosa Fernández, Víctor (2017-01-20)
Working paper
Accés obertWe show that for periodic non-autonomous discrete dynamical systems, even when a common fixed point for each of the autonomous associated dynamical systems is repeller, this fixed point can became a local attractor for the ... -
Periodic orbits of discrete and continuous dynamical systems via Poincaré-Miranda theorem
Gasull Embid, Armengol; Mañosa Fernández, Víctor (2020-02)
Article
Accés obertWe present a systematic methodology to determine and locate analytically isolated periodic points of discrete and continuous dynamical systems with algebraic nature. We apply this method to a wide range of examples, including ... -
Periodic orbits of discrete and continuous dynamical systems via Poincaré-Miranda theorem
Gasull Embid, Armengol; Mañosa Fernández, Víctor (2018-09-17)
Report de recerca
Accés obertWe present a systematic methodology to determine and locate analytically isolated periodic points of discrete and continuous dynamical systems with algebraic nature. We apply this method to a wide range of examples, including ...