MIGUEL ANGEL ALEJO PLANA2026-01-292026-01-29202310.22199/ISSN.0717-6279-53542-s2.0-85170249945https://www.scopus.com/inward/record.uri?eid=2-s2.https://ucocris.uco.es/handle/123456789/36884Mathematics (all)Dynamics of breathers in the Gardner hierarchy: universality of the variational characterizationresearch article