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Ara es mostren els items 30948-30967 de 245383
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Bifurcation at complex instability
(1995)
Article
Accés obertIn an autonomous Hamiltonian system with three or more degrees of freedom, a family of periodic orbits may become unstable when two pairs of characteristic multipliers coallesce on the unit circle at points not equal to ... -
Bifurcation diagram for saddle/source bimodal linear dynamical systems
(2016)
Article
Accés obertWe continue the study of the structural stability and the bifurcations of planar bimodal linear dynamical systems (BLDS) (that is, systems consisting of two linear dynamics acting on each side of a straight line, assuming ... -
Bifurcation diagram of Saddle/Spiral bimodal linear systems
(2017-01-01)
Article
Accés obertWe complete the study of the bifurcations of saddle/spiral bimodal linear systems, depending on the respective traces T and t: one 2-codimensional bifurcation; four kinds of 1-codimensional bifurcations. We stratify the ... -
Bifurcation gaps in asymmetric and high-dimensional hypercycles
(2018-01-01)
Article
Accés obertHypercycles are catalytic systems with cyclic architecture. These systems have been suggested to play a key role in the maintenance and increase of information in prebiotic replicators. It is known that for a large enough ... -
Bifurcation of 2-periodic orbits from non-hyperbolic fixed points
(2017-07-21)
Report de recerca
Accés obertWe introduce the concept of 2-cyclicity for families of one-dimensional maps with a non-hyperbolic fixed point by analogy to the cyclicity for families of planar vector fields with a weak focus. This new concept is useful ... -
Bifurcation of 2-periodic orbits from non-hyperbolic fixed points
(2018-01)
Article
Accés obertWe introduce the concept of 2-cyclicity for families of one-dimensional maps with a non-hyperbolic fixed point by analogy to the cyclicity for families of planar vector fields with a weak focus. This new concept is useful ... -
Bifurcation of relative equilibria of the (1+3)-body problem
(2015-04-02)
Article
Accés obertWe study the relative equilibria of the limit case of the planar Newtonian 4-body problem when three masses tend to zero, the so-called (1+3)-body problem. Depending on the values of the infinitesimal masses the number of ... -
Bifurcation patterns in homogeneous area-preserving piecewise-linear maps
(2018-11-26)
Article
Accés obertThe dynamical behavior of a family of planar continuous piecewise linear maps with two zones is analyzed. Assuming homogeneity and preservation of areas we obtain a canonical form with only two parameters: the traces of ... -
Bifurcation phenomena in open-loop DCM-operated DC–DC switching converters feeding constant power loads
(2023-02-19)
Article
Accés obertConstant power loading is an effect that appears in multiple-stage energy conversion systems with individually regulated switching power converters. In a two-stage system, an upstream or source converter drives one or more ... -
Bifurcation phenomena in Taylor–Couette flow in a very short annulus with radial through-flow
(Nature, 2022-12-21)
Article
Accés obertIn this study, the non-linear dynamics of Taylor–Couette flow in a very small-aspect-ratio wide-gap annulus in a counter-rotating regime under the influence of radial through-flow are investigated by solving its full ... -
Bifurcation to square-wave switching in orthogonally delay-coupled semiconductor lasers: Theory and experiment
(2011-08-22)
Article
Accés obertWe analyze the dynamics of two semiconductor lasers with so-called orthogonal time-delayed mutual coupling: the dominant TE (x) modes of each laser are rotated by 90∘ (therefore, TM polarization or y) before being coupled ... -
Bifurcation tracking techniques for periodic orbits of PDEs
(Universitat Politècnica de Catalunya, 2016-06-27)
Text en actes de congrés
Accés obert -
Bifurcations analysis of oscillating hypercycles
(2015-12-21)
Article
Accés obertWe investigate the dynamics and transitions to extinction of hypercycles governed by periodic orbits. For a large enough number of hypercycle species (n > 4) the existence of a stable periodic orbit has been previously ... -
Bifurcations in 1D systems: saddle-node, transcritical, pitchfork
(Universitat Politècnica de Catalunya, 2021-03)
Apunts
Accés obert -
Bifurcations to quasiperiodicity of the torsional solutions of convection in rotating fluid spheres: techniques and results
(2022-11-07)
Article
Accés obertThe linear stability of the periodic and axisymmetric solutions of the convection in rotating, internally heated, and self-gravitating fluid spheres is presented. The transition to quasiperiodic flows via Neimark–Sacker ... -
Bifurcations with imperfect SO(2) symmetry and pinning of rotating waves
(2013-04-08)
Article
Accés restringit per política de l'editorialRotating waves are periodic solutions in SO(2) equivariant dynamical systems. Their precession frequency changes with parameters and it may change sign, passing through zero. When this happens, the dynamical system is very ... -
Big apple para un parque
(Laboratorio de Urbanismo de Barcelona, 1985)
Article
Accés obert -
Big brother
(Universitat Politècnica de Catalunya, 2007-05)
Projecte/Treball Final de Carrera
Accés obert -
Big building, small city: Redefining the notion of scale
(Universitat Politècnica de Catalunya, 2021-07-07)
Projecte Final de Màster Oficial
Accés obertThe face of a city landscape is the fruit of many factors, and can be derived not only from the drive of the people in power to showcase their political ‘achievements’, but also a series of unpredictable events, a juxtaposition ... -
Big Chance - CRM col·laboratiu per la gestió comercial
(Universitat Politècnica de Catalunya, 2011-06-30)
Projecte/Treball Final de Carrera
Accés restringit per acord de confidencialitat