V článku je proveden důkaz existence alespoň tří řešení pro jistou třídu nelineárních parciálních diferenciálních rovnic. (cs)
We extend ODE results of Henderson and Thompson,to a large class of boundary value problems for both ODEs and PDEs. Our method of proof combines upper and lower solutions with degree theory.
We extend ODE results of Henderson and Thompson,to a large class of boundary value problems for both ODEs and PDEs. Our method of proof combines upper and lower solutions with degree theory. (en)