par Bordeu, Ignacio;Clerc, Marcel;Lefever, René 
;Tlidi, Mustapha
Référence Communications in nonlinear science & numerical simulation, 29, 1-3, page (482-487)
Publication Publié, 2015
;Tlidi, Mustapha Référence Communications in nonlinear science & numerical simulation, 29, 1-3, page (482-487)
Publication Publié, 2015
Article révisé par les pairs
| Résumé : | The stability of a circular localized spot with respect to azimuthal perturbations is studied in a prototype variational model, namely, a Swift-Hohenberg type equation. The conditions under which the circular shape of the spot undergoes an elliptical deformation which transforms it into a rod-shaped structure are analyzed. As it elongates, the rod structure exhibits a transversal instability, generating an invaginated labyrinthine structure which invades all the space available. |
