Exploració per tema "Hopf bifurcation"
Ara es mostren els items 1-10 de 10
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Computation of azimuthal waves and their stability in thermal convection in rotating spherical shells with application to the study of a double-Hopf bifurcation
(2013-03-22)
Article
Accés obertA methodology to compute azimuthal waves, appearing in thermal convection of a pure fluid contained in a rotating spherical shell, and to study their stability is presented. It is based on continuation, Newton-Krylov, and ... -
Hopf and Neimark-Sacker bifurcations: applications to discrete-time hypercycles with functional shifts
(Universitat Politècnica de Catalunya, 2021-10)
Projecte Final de Màster Oficial
Accés obertHypercycles are cyclic catalytic sets of replicating macromolecules, where each one of the species catalyzes the replication of the next species of the set. This system has been widely studied within the framework of origins ... -
Hopf bifurcation for the hydrogen atom in a circularly polarized microwave field
(2018-09-01)
Article
Accés obertWe consider the Rydberg electron in a circularly polarized microwave field, whose dynamics is described by a Hamiltonian depending on one parameter, K¿>¿0. The corresponding Hamiltonian system of ODE has two equilibrium ... -
How does the hopf bifurcation appear in the hydrogen atom in a Circularly Polarized (CP) microwave field?
(Birkhäuser, 2019)
Capítol de llibre
Accés restringit per política de l'editorialThe dynamics of the Rydberg atom in a rotating electric field can be described by a two degree of freedom Hamiltoniandepending on a parameterK. This Hamiltonian has two equilibrium pointsL1andL2. WhileL1is a saddle-center ... -
KAM aspects of the quasiperiodic Hamiltonian Hopf bifurcation
(2004)
Article
Accés obertIn this work we consider a normal form around a 1:-1 non semi-simple resonant periodic orbit of a three-degree of freedom Hamiltonian system. From the formal analysis it can be proved the branching off a two-parameter ... -
Lid driven triangular and trapezoidal cavity flow: vortical structures for steady solutions and Hopf bifurcations
(Multidisciplinary Digital Publishing Institute, 2023-01-09)
Article
Accés obertA numerical study of two dimensional lid-driven triangular and trapezoidal cavity flow is performed via using the lattice Boltzmann method (LBM) for steady solutions. The equilateral and right-angled isosceles triangular ... -
Motion close to the hopf bifurcation of the vertical family of periodic orbits of L^4
(2003)
Article
Accés obertThe paper deals with different kinds of invariant motions (periodic orbits, 2D and 3D invariant tori and invariant manifolds of periodic orbits) in order to analyze the Hamiltonian direct Hopf bifurcation that takes place ... -
Pseudoplastic fluid flows for different Prandtl numbers: steady and time-dependent solutions
(2019-11)
Article
Accés obertIn this work, a variational multiscale (VMS) finite element formulation is used to approximate numerically the natural convection in square cavity with differentially heated from sidewalls problem for Newtonian and power-law ... -
Stationary and time-dependent numerical approximation of the lid-driven cavity problem for power-law fluid flows at high Reynolds numbers using a stabilized finite element formulation of the VMS type
(2018-07)
Article
Accés obertIn this work, a variational multiscale finite element formulation is used to approximate numerically the lid-driven cavity flow problem for high Reynolds numbers. For Newtonian fluids, this benchmark case has been extensively ... -
The uncoupling limit of identical Hopf bifurcations with an application to perceptual bistability
(2019-12-01)
Article
Accés obertWe study the dynamics arising when two identical oscillators are coupled near a Hopfbifurcation where we assume a parameter uncouples the system at = 0. Using anormal form forN= 2 identical systems undergoing Hopf bifurcation, ...