activity
20092026
most citedSplitting of the separatrices after a Hamiltonian-Hopf bifurcation under periodic forcing

6 citations · 18 across the 12 of their papers we have counts for

collaborators

16 papers

q-bio.PE2026

Lag-Induced Critical Transitions to Extinction in Replicating Systems

Edward A. Turner, Francisco Crespo, Joan Gimeno +3

Replicating systems sustained by error-prone enzymatic amplification can undergo critical transitions between persistence and extinction. In RNA viruses, such transitions are class…

math.DS2024

Chaotic dynamics at the boundary of a basin of attraction via non-transversal intersections for a non-global smooth diffeomorphism

Ernest Fontich, Antonio Garijo, Xavier Jarque

In this paper we give analytic proofs of the existence of transversal homoclinic points for a family of non-globally smooth diffeomorphisms having the origin as a fixed point which…

math.DS2024

Chaotic scattering of He atoms off a Cu surface with corrugated Morse potential

Florentino Borondo, Ernest Fontich, Pau Martín

We consider a Hamiltonian system that models the scattering of helium atoms off a copper surface. The interaction between the He and the Cu atoms is described by a corrugated Morse…

math.DS2024

Invariant manifolds of degenerate tori and double parabolic orbits to infinity in the (n+2)-body problem

Immaculada Baldomá, Ernest Fontich, Pau Martín

There are many interesting dynamical systems in which degenerate invariant tori appear. We give conditions under which these degenerate tori have stable and unstable invariant mani…

math.DS2023

Invariant manifolds of maps and vector fields with nilpotent parabolic tori

Clara Cufí-Cabré, Ernest Fontich

We consider analytic maps and vector fields defined in , having a -dimensional invariant torus . The map (resp. vector field) rest…

math.DS2023

Functional shift-induced degenerate transcritical Neimark-Sacker bifurcation in a discrete hypercycle

E. Fontich, A. Guillamon, J. Perona +1

In this article we investigate the impact of functional shifts in a time-discrete cross-catalytic system. We use the hypercycle model considering that one of the species shifts fro…