Díaz Díaz, Jesús IldefonsoLiñán Martínez, Amable2023-06-202023-06-2020011578-7303https://hdl.handle.net/20.500.14352/57335Comunicación Preliminar / Preliminary CommunicationWe show that there are two curves of initial data (xo, vo) for which the solutions x(t) of the corresponding Cauchy problem associated to the equation xtt + |xí|a_1 xt + x — 0, where a G (0,1), vanish after a finite time. By using asymptotic and methods and comparison arguments we show that for many other initial data the solutions decay to 0, in an infinite time, as i-"/í1-").engjournal articlehttp://www.rac.es/ficheros/doc/00050.pdfhttp://www.rac.es/restricted access517.9sublinear damped oscillatorCoulomb frictionextinction in a finite time.Ecuaciones diferenciales1202.07 Ecuaciones en Diferencias