TY - JOUR ID - Goncerz2012 LB - Goncerz2012 AU - Goncerz, Paweł TI - On the existence of three solutions for quasilinear elliptic problem ST - On the existence of three solutions for quasilinear elliptic problem JO - Opuscula Math. JA - Opuscula Math. JF - Opuscula Mathematica PY - 2012 VL - 32 IS - 3 SP - 473 EP - 486 DO - http://dx.doi.org/10.7494/OpMath.2012.32.3.473 UR - http://dx.doi.org/10.7494/OpMath.2012.32.3.473 AB - We consider a quasilinear elliptic problem of the type \(-\Delta_p u = \lambda (f(u)+\mu g(u))\) in \(\Omega\), \(u|_{\partial \Omega} =0\), where \(\Omega \in \mathbb{R}^N\) is an open and bounded set, \(f\), \(g\) are continuous real functions on \(\mathbb{R}\) and \(\lambda , \mu \in \mathbb{R}\). We prove the existence of at least three solutions for this problem using the so called three critical points theorem due to Ricceri. KW - critical point KW - elliptic problem KW - minimax inequality KW - \(p\)-Laplacian KW - three critical points theorem KW - weak solution SN - 1232-9274 ER -