caa a22 4500 386383308 CHVBK 20180307112050.0 cr unu---uuuuu 161130s1989 xx s 000 0 eng 10.1017/S0308210500028213 doi S0308210500028213 pii (NATIONALLICENCE)cambridge-10.1017/S0308210500028213 Quadratic forms, weighted eigenfunctions and boundary value problems for non-linear second order ordinary differential equations [Elektronische Daten] Some known results for different kinds of boundary value problems for second order ordinary differential equations are generalised. Different approaches are compared with one another, using topological and variational methods and the theory of weighted eigenvalue problems. Copyright © Royal Society of Edinburgh 1989 Fonda Alessandro Institute of Mathematics, Chemin du Cyclotron 2, B1348 Louvain-la-Neuve, Belgium Mawhin Jean Institute of Mathematics, Chemin du Cyclotron 2, B1348 Louvain-la-Neuve, Belgium Proceedings of the Royal Society of Edinburgh: Section A Mathematics Royal Society of Edinburgh Scotland Foundation 112/1-2(1989), 145-153 0308-2105 112:1-2<145 1989 112 PRM https://doi.org/10.1017/S0308210500028213 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0308210500028213 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fonda Alessandro Institute of Mathematics, Chemin du Cyclotron 2, B1348 Louvain-la-Neuve, Belgium NATIONALLICENCE 700 1- Mawhin Jean Institute of Mathematics, Chemin du Cyclotron 2, B1348 Louvain-la-Neuve, Belgium NATIONALLICENCE 773 0- Proceedings of the Royal Society of Edinburgh: Section A Mathematics Royal Society of Edinburgh Scotland Foundation 112/1-2(1989), 145-153 0308-2105 112:1-2<145 1989 112 PRM CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge