-equivariant Ljusternik-Schnirelman theory for non-even functionals
Bifurcation and symmetry in problems of capillary-gravity waves.
Bifurcation and symmetry-breaking.
Bifurcation from relative equilibria of noncompact group actions: Skew products, meanders, and drifts.
Bifurcation of the equivariant minimal interfaces in a hydromechanics problem.
Convex functionals and generalized harmonic maps into spaces of non positive curvature.
Formules et considérations diverses se rapportant à la théorie des ramifications
Group analysis methods for construction and investigation of the bifurcation equation
Hopf-bifurcation in systems with spherical symmetry. I: Invariant tori.
On a local Lipschitz constant of the maps related to -decomposition.
Solutions with subgroup symmetry for singular equations in bifurcation theory.