caa a22 4500 388092254 CHVBK 20180307125255.0 cr unu---uuuuu 161130e199908 xx s 000 0 eng 10.1017/S0004972700033384 doi S0004972700033384 pii (NATIONALLICENCE)cambridge-10.1017/S0004972700033384 Nakajima Fumio Department of Mathematics Faculty of Education Iwate University Morioka 020-0066 Japan Bifurcation of nonsymmetric solutions for some duffing equations [Elektronische Daten] [Fumio Nakajima] For some symmetric Duffing equation, the existence of bifurcation of nonsymmetric, periodic solutions from symmetric periodic solutions is proved by using the change of index of symmetric, periodic solutions for variation of parameters. Copyright © Australian Mathematical Society 1999 Bulletin of the Australian Mathematical Society Cambridge University Press 60/1(1999-08), 119-128 0004-9727 60:1<119 1999 60 BAZ https://doi.org/10.1017/S0004972700033384 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0004972700033384 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Nakajima Fumio Department of Mathematics Faculty of Education Iwate University Morioka 020-0066 Japan NATIONALLICENCE 773 0- Bulletin of the Australian Mathematical Society Cambridge University Press 60/1(1999-08), 119-128 0004-9727 60:1<119 1999 60 BAZ CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge